u/Empty-Conclusion3571

A complete version of my idea

Innate Technique "Viva Las Vegas": A complicated innate technique about gambling.

Shikigami and Cards: A deck of 52 cards is held by a Shikigami called The House. The House fairly and completely randomly shuffles the cards before beginning a chosen game. The House also enforces rules and prevents the user from cheating by hiding cards or lying, shuffling also takes around one second. The cards and The House are indestructible, but aren't dangerous until the user does specific rituals.

The House: A trio of floating arms. One is delicate and feminine with black and red fingernails, one is large and muscular, and the last one is lean and evenly built.

Card Activation and Games: A card can either be thrown, played, discarded, or the user can fold in all games - with specified exceptions. Throwing a card turns it into a blunt projectile and activates it, with throwing multiple at once being allowed - card value not mattering unless specified in a game. Punching with a card also counts as throwing and enhances the punch. Playing a card is cheaper but only activates it. Discarding a card puts it random into the deck at the same cost as playing. Folding deactivates all cards and reshuffles every card into the deck, ce cost matching the cost of discarding the number of activated cards and cards in the user's hand - used to instantly end games. A hand cannot be kept when switching games, with switching games automatically causing a fold - with some exceptions.

Game Zero: When no game is active, these rules apply. Cards of higher value are stronger when thrown than cards of lower value - a 2 is 50% power, a 6 is 100%, while an Ace is 150%. The max cards the user can hold is 7 during Game Zero. Playing a card isn't allowed, as it does nothing.

Game One, Poker: In this game, The House gives the user a max of five cards per hand. Upon five cards being activated, the hand that they produce activates a specified effect and all of the cards are reshuffled into the deck. Poker cannot be stopped unless the user folds.

High Card: Replenishes CE based on the highest card's number value - aces can be consciously chosen to have a number value of either 11 or 1. Face cards all have a value of 10. This cannot give more ce than maximum capacity.

One Pair: Same as High Card but the pair is multiplied by two.

Two Pair: Same as One Pair but with four cards.

Three Of A Kind: Same as One Pair but the trio is multiplied by three.

Straight: Same as One pair but all five cards are multiplied by three and the ce gain is gradual instead of instant.

Flush: Same as One pair but all five cards are multiplied by 1.5 and produces rct to heal instantly.

Full House: First, replenishes ce based on the combined value of the five cards without multiplication, then allows the user to - after the shuffle caused by the Full House - ask The House to replace up to three cards in their new hand with a card of the user's choosing. The cards chosen have to be ones that haven't been drawn yet.

Four Of a Kind: Same as One Pair but the quad is multiplied by four.

Straight Flush: The same as Straight but generates rct instead of ce.

Royal Flush: A royal flush instantly replenishes cursed energy and activates the user's domain at no cost with nullified burnout. This is the only way for the user to activate their domain.

Downgrade: A poker hand can be consciously downgraded to activate the effect of a weaker hand, such as replacing Royal Flush with Straight Flush or replacing Four Of A Kind/Full House with a Flush. For downgrades the user chooses what cards in the hand are used (one card for a High, two for a one pair, four for a two pair, etc).

Pre-game: The user can have a poker hand prepared before a fight by playing out of combat.

Domain "Twin Maids": A domain that is made faster and has much higher durability in exchange for being a gimmick and requiring a specific hand to activate - the domain also has a cube shape. The domain resembles the average run-down house, with the user and opponents sitting at a large, round wooden table. While the domain is active, the opponents have to play a game the user calls Twin Maids. The user does not have to play Twin Maids, but can if they want.

Twin Maids: Two joker cards are added to the 52 card deck and shuffled in by The House, then The House spreads the cards, with the opponents being forced to pick five cards in twenty seconds. If one of the cards is a joker then the opponent is greatly injured by having a limb crushed - possibly killed if previously injured. If the opponent pulls both jokers then they are instantly killed by having their skull or vitals crushed. Refusing to pick five cards in twenty seconds, trying to attack the user/shikigami, and using cursed energy all result in an instant loss and death. The game lasts for two rounds unless the opponent loses in the first. These game rules are instantly forced into the opponent's mind. The domain closes after two rounds unless the user spends a great amount of cursed energy to keep it open, which repeats the domain rules a second time. The user must follow these rules if they choose to play and aren't allowed to attack anyone inside even if they're not playing. The rules are enforced by The House, meaning even someone like Toji needs to follow them since The House can see even people that lack cursed energy and can witness them breaking any of the rules. The punishment is done through The House using its arms and hands to produce a powerful squeezing force.

Game Two, Whitejack: Starts with The House giving the user two cards and the goal of reaching 21 using the hand without going over. The user can ask to be given a third card, but three cards is the max. In Whitejack, throwing a card acts as discarding it, and playing a card does nothing - both because this game is about the cards in the user's hand. This ends when the user folds. Reaching 21 grants a rejuvenation of ce and allows bringing a chosen card into the next game's hand, while going over 21 depletes it to nearly zero. The House only automatically gives the user a new card for Whitejack if they have less than two cards, giving cards until they have two, and only giving a third if the user asks.

Game Three, Guess 26: The House gives the user 26 cards to use while The House holds and "owns" the rest. In this game, throwing a card of the same face or number as one The House owns makes the throwing price nearly zero but doubles it otherwise. The opposite applies for discarding, with it costing nothing if The House doesn't own a card like it in number or face, but doubling if The House does own one. Examples being throwing a 2 for free since The House also owns a 2. The House doesn't give the user new cards during Guess 26 until they either fold or throw/discard all 26 cards.

Game Four, Face Off: The House gives the user a max of twelve cards to use. In this game, playing and discarding cards isn't allowed, and the user has to either throw all twelve cards at once or fold. Thrown cards that aren't face cards are also weaker. In exchange, any face cards thrown become shikigami wearing garbs resembling their suit. These shikigami automatically disappear if the user folds, activates a card, or discards a card.

Jack: The Jack shikigami are humanoids with an average build. Being not too fast and not too slow, not too weak but not too strong. They randomly either have a pitchfork, dagger, or buckler.

Queen: The Queen shikigami are slightly tall feminine humanoids with a slender build, looking like a ribbon dancer. Faster but weaker than Jack while wielding twin daggers.

King: The King shikigami are towering toned humanoids with crowns attached to their head. Slower but stronger than Jack. They lack weapons because they are the weapon.

Ce Trait: The user's cursed energy is silky smooth, which decreases air resistance and friction. It also has a soft gold coloration.

Sub-ability: A binding vow can be used to put all game rules information into a person's mind in an instant. This can be done any time but is less effective the more the enemy already knows.

Originally, the technique only gave 54 projectile cards and the ability to summon weak shikigami. The owner of the technique used their knowledge of domains, rct, and ce storage to make multiple binding vows that changed the technique completely.

Peak?

:steam happy:

A work in progress technique I made to be complicated

Innate Technique "Viva Las Vegas": An innate technique about complicated gambling.

Shikigami and Cards: A deck of 52 cards is held by a Shikigami called The House. The House fairly and completely randomly shuffles the cards before teleporting five cards into the user's hand. The House also enforces rules and prevents the user from cheating by hiding cards or lying, shuffling also takes around one second. Cards and The House are indestructible, but aren't dangerous until the user accomplishes specific rituals.

Card Activation: A card can either be thrown to activate or discarded to be placed in a random part of the deck and replaced by a new card from The House - discarding is half as costly as throwing, but both cost ce and grant a new card afterwards. Cards, when thrown, cause a strong blunt impact where they land before falling to the floor - card value doesn't affect impact strength. Card impacts can consciously be delayed or activated mid-air to explode with force equal to it impacting. Normally, once five cards in total are thrown and have hit something (anything), The House will have them float and spread together to reveal the hand they make while verbally announcing it and activating the hand effect, take any cards the user currently has, then shuffle all of the cards to have the technique restart. All hand types have a special ability on activation. The user can choose to fold to automatically start a shuffle at a ce cost similar to discarding the combined amount cards currently thrown/played and in hand. The user can choose to have a hand not activate to avoid having The House shuffle the cards, but cards still automatically shuffle after all 52 cards are thrown, and a hand cannot be played with more than five cards thrown. The user can choose to play a card to activate it instead of throwing it by dropping the chosen card (basically a thrown card that isn't thrown), as cheap as discarding but not as offensive as throwing.

High Card: Replenishes CE based on the highest card's number value - aces can be consciously chosen to have a number value of either 11 or 1. Face cards all have a value of 10. This cannot give more ce than maximum capacity.

One Pair: Same as High Card but the pair is multiplied by two.

Two Pair: Same as One Pair but with four cards.

Three Of A Kind: Same as One Pair but the trio is multiplied by three.

Straight: Same as One pair but all five cards are multiplied by three and the ce gain is gradual instead of instant.

Flush: Same as One pair but all five cards are multiplied by 1.5 and produces rct to heal instantly.

Full House: First, replenishes ce based on the combined value of the five cards without multiplication, then allows the user to - after the shuffle caused by the Full House - ask The House to replace up to three cards in their new hand with a card of the user's choosing. The cards chosen have to be ones that haven't been drawn yet.

Four Of a Kind: Same as One Pair but the quad is multiplied by four.

Straight Flush: The same as Straight but generates rct instead of ce.

Royal Flush: A royal flush instantly replenishes cursed energy and activates the user's domain at no cost with nullified burnout.

Downgrade: A hand can be consciously downgraded to activate the effect of a weaker hand, such as replacing Royal Flush with Straight Flush or replacing Four Of A Kind/Full House with a Flush. For downgrades the user chooses what cards in the hand are used (one card for a High, two for a one pair, etc).

Domain "Twin Maids": A domain that is made faster and has much higher durability in exchange for being a gimmick - the domain also has a house shape inside and out, a triangular prism over a cube. The domain resembles the average run-down house, with the user and opponents sitting at a large, round wooden table. While the domain is active, the opponents have to play a game the user calls Twin Maids. The user does not have to play Twin Maids, but can if they want.

Twin Maids: two joker cards are added to the 52 card deck and shuffled in by The House, then The House spreads the cards, with the opponents being forced to pick five cards in twenty seconds. If one of the cards is a joker then the opponent is greatly injured - possibly killed if previously injured. If the opponent pulls both jokers then they are instantly killed. Refusing to pick five cards in twenty seconds, trying to attack the user/shikigami, and using cursed energy all result in an instant loss and death. The game lasts for two rounds unless the opponent loses in the first. These game rules are instantly forced into the opponent's mind. The domain closes after two rounds unless the user spends a great amount of cursed energy to keep it open, which repeats the domain rules. The user must follow these rules if they choose to play and aren't allowed to attack anyone inside even if they're not playing. The rules are enforced by The House, meaning even someone like Toji needs to follow them since The House can see even people that lack cursed energy. The punishment is done through a powerful squeezing force.

Maximum Output "Full Deck": Done by asking The House to borrow the deck and throwing it like a brick - technically not against the rules. Ce cost is the same as throwing 52 cards at the same time but also has the same power as 52 cards combined. A lesser version of this can be done by throwing a hand's worth of cards.

Ce Trait: The user's cursed energy is silky smooth, which decreases air resistance and friction. It also has a soft gold coloration.

Samsara: An innate cursed technique owned by a singular sorcerer. It grants the soul complete indestructibility and immunity to shaping but doesn't affect the body's durability. Upon body death, the soul leaves and enters any biological being that doesn't have a soul yet (usually fetuses). The soul retains all memories and muscle memory, with ce and ct also being stored in the soul and used through the soul - this makes the soul their brain. The body they reincarnate into also grows to resemble them overtime - for example, if they reincarnate as a curse it'll slowly become humanoid over months.

Note: Samsara barely discriminates when it comes to "biological being" meaning they could become almost anything when they die, even a worm. Despite this, they will always have cursed energy and the body will eventually become more human in size and shape overtime - time depending on the size of the current biological being, perhaps taking years for an ant or decades for a fairyfly. The new vessel is also never microscopic in size (like a single cell or tardigrade) and is never an object (like a rock).

Limits: Ce output must be limited, because too powerful of an action could harm their current body. They're in a state of constant pain until they reach their complete form. The technique owner also cannot pass down their technique in any way.

I was inspired by a lot of other people's techniques and wanted to make one that is a combination of different ideas.

:steam happy:

The unnamed grade 1 master of barrier techniques: a sorcerer who lacked an innate technique and studied barriers to make up for it, becoming a grade 1 that is almost special grade.

Observant Glass Cage: The sorcerer's self-made use of barrier techniques that is an enclosed barrier of any shape. It is as weak as a thin pane of glass but allows the sorcerer to be aware of everything inside. The size of the awareness can be chosen from vague to almost microscopic. Sensory overload is possible but rare.

Black Bone Gauntlets: Another self-made technique done by placing multiple barriers around their hand. This is combined with a filter to decrease cost - basically meaning it can only be used to block or hit specifically chosen targets. This can be applied to other body parts for protection, but it is mainly placed on the hands for easier use.

Vlad Guard: The final self-made technique. Done by making a stationary lance-shaped barrier used to stab anything that moves into it. Can also have a filter like their Gauntlets.

Closed Domain "Freedom Boundary": A domain for the almost weak and almost strong. It looks like a domain expansion but lacks a sure-hit. Instead, within this domain, creation of barrier techniques is faster and cheaper.

They also have most known barrier techniques that they use normally.

:steam happy:

Tragedies: an innate technique that gives one mark to the user whenever they experiences an inconvenient or unlucky occurrence, with them then forgetting about it. They can have up to six marks.

Use: activated upon attacking someone, with the attack being a guaranteed success - comparable to a domain sure-hit - and one of the marks disappearing. The guaranteed success is between the best and worst case scenario, making it not extremely good or extremely bad.

Maximum output: two marks can be consciously used to guarantee the best case scenario of an attack.

Limit: only applies to attacks or actions thought of as causing misfortune for the target/enemy.

:steam happy:

This is going to be a long read...

Learnable Technique "Magic": Allows the ability to do anything based on understanding and ce used, ranging from explosions to spacial warping. Magic users are also separated into Expressions; Self, Emission, Rune, Homunculus, and Barrier Magic. Magic is a technique that became so complicated that it basically became its own skill set.

Origin: It originates from an area of Japan that sorcerers aren't aware of - hidden using a barrier made using Magic. This area is dominated by people that lack innate techniques but have mastery over Magic. Curses are also rare because everyone in this area is a sorcerer.

Average person: The average person from this area uses Magic for everyday purposes but is weak due to a lack of specialization. Weak Magic users are usually limited to yet still have minor Telekinesis and Barrier Magic, since Magic education is basically mandatory. Most people are around grade 3-4.

Skilled people: Skilled Magic users use a binding vow to limit their use of Magic or greatly weaken other uses in exchange for stronger use of one type of Magic. This is where Magic becomes specialized beyond Expressions through many combinations of vows - gravity, sword generation/control, slashing, fire, sound, illusions, butterflies. Grade 2 and above.

Innate techniques: People with innate techniques in this world of Magic are called Innate Masters and treated with either awe, envy, or disdain depending on the innate technique they're born with. Some people with innate techniques in this area sometimes even make a subconscious binding vow out of self-hatred that makes their innate technique weaker in exchange for stronger Magic use.

Expressions: specialization of Magic for improved use in one field. They can be swapped freely, but understanding one only slightly helps with understanding another, and someone can only use one Expression type at once. It is possible to use two at once, but it is extremely inefficient and difficult.

Self: Magic used to enhance the self, can range from basic ce enforcement to hair control and changing how gravity affects themself. This uses a binding vow to increase strength of using ce on the self in exchange for being unable to, or worse at, using it on others. Most common Self Magic is replicating animal traits - claws, armor.

Emission: Magic used to affect things outside of the user. Uses a binding vow to make the user unable to use ce within their body in exchange for external power. The most common and basic magic. Can only make things out of ce, unable to make real things like an iron ingot unless physical materials are provided to shape. Easiest Emission magic is force - push, pull, lift, squeeze.

Rune: Magic used to infuse long-lasting or permanent effects into a tool using symbol engravings. Incredibly time-consuming. Has a tattoo sub-type that puts runes on people. The most common Rune application is increasing durability.

Barrier: Magic used specifically to make barriers. It is separate from Emission due to how complex it is by itself and the fact it has different uses. All Magic users can use Barrier Magic to some degree.

Homunculus: Magic used to make Homunculi, a mix of physical matter and cursed energy, which can have many uses. High material cost and more time consuming than Rune Magic. Most common Homunculus Magic use is to make humanoids, since they're easier to control manually.

Understanding: One must understand the anatomy, physics, and all possible information on their type of Magic to use it effectively. They cannot do something they don't understand the theory behind or have a sense for (it is rare but possible for someone to use Magic with subconscious instinct), and precise uses are harder and more expensive than bluntly powerful ones - meaning atomic manipulation is still limited to someone like a six eyes user.

Tools: Tools used to assist in focusing Magic, primarily wands but can be practically anything. Rune Magic users usually have their rune-making tools be their focus tools. Mainly combined with a binding vow that worsens control without the tool in exchange for higher control with it. Most tools/wands are passed through generations and become high grade tools overtime, with forgotten or lost wands being found and taken to a wand store.

Activation: Uses of Self, Simple Barrier, and Emission Magic are usually activated using unique quick phrases or wand pointing/waving to decrease cost. Rune, Complicated Barrier, and Homunculus Magic usually use chanting to increase efficiency. Chanting and phrases aren't needed - and can be skipped to confuse an enemy - but are commonly used to decrease ce cost.

Schools: there are schools for learning Magic, with each school teaching differently. There are also libraries outside of schools.

Special grade magic type "Time": the strongest magic type and hardest to learn, with incredibly high ce cost but high reward for those efficient and powerful enough to use it, owned by the strongest Magic users. Allows the ability to reverse, fast forward, or slow the state of the self. Most common use is immortality through self-de-aging and fast forwarding themself to move faster. This is a Self-type application of Magic.

Stage 1 of learning: basic ce manipulation and general studies from practice and school or libraries. Usually grade four.

Stage 2 of learning: choosing your Expression and learning how to use it. Usually grade three.

Stage 3 of learning: choosing your element and studying it in detail. Between grade three and two. Most families have a family-specific element that they are specialized in.

Stage 4 of learning: mastery of the chosen Element and Expression. Grade one to special grade.

Grade 4: Weak general use for life convenience.

Grade 3-2: Specialized blunt use with some precision. An example would be crushing someone with Gravity Magic.

Grade 1: High precision use of Element and Expression. An example would be trapping someone with Gravity Magic by applying force on specifically the person's head for a condensed, possibly deadly, output.

Special Grade: Extreme precision. An example would be piercing someone using a thin line of gravity magic like a scalpel. Though even special grade Magic users lack a domain, which is the only thing that makes them different from a special grade sorcerer.

Secret: This area was actually created by a biological child of someone distantly related to [Jesus](https://www.reddit.com/r/CTsandbox/comments/1tbmxec/crown\_of\_thorns\_and\_jesus\_christ/) that also had the cursed technique Alchemy. They're also the one that made the barrier.

TLDR: Magic in JJK! Yay!

:steam happy:

I'm using Heavenly Restriction as a placeholder for special soul/body traits (which really should be it's own flair/tag)

Multiple Personality Disorder: the opposite of sorcerer twins, where multiple souls reincarnate into one body. This causes confusing and complicated reactions that are still being studied.

Body and ce: the body with Multiple Personality changes completely depending on the soul currently in control. Ce traits - amount, properties, etc - are also specific to each soul, with each one also having their own reserves. If one of the souls has six eyes then it alone has it, it doesn't transfer to the other souls. Damage does not transfer between bodies but injuries stay for a soul until they heal outside. The only constant is aging, which never stops.

Restrictions and Techniques: each soul can have its own technique and heavenly restriction.

Body Enhancing Restriction: if one of the souls are like Toji, all of the other souls are basically trapped until that soul dies. A soul dies when its own body dies or their soul is destroyed.

Absorption: a soul within Multiple Personality can absorb another soul within Multiple Personality, either accidentally or on purpose. The difficulty depends on the physical strength and ce of the other soul.

It is most common for a sorcerer to originally have Multiple Personality without realizing it, since the other soul can be absorbed before birth - since the other soul is usually a non-sorcerer or a weak one without a technique. If both souls are a sorcerer then that's when both souls grow up together, with only a slim chance of one absorbing the other. Multiple Personality soul amount is twice as rare as twins, triplets, and so on.

Idea origin: I wanted a headcannon reason for why some sorcerers have more output and storage than others aside from genetics.

Peak?

:steam happy:

Chainsaw Curse: a very creative and original curse idea made from the negative emotions felt towards the industrialized destruction of nature. It is a humanoid with a chainsaw for a head and small chainsaws for fingers.

Cursed Technique "Gluttonous Gullet": anything that enters the curse's throat is broken apart and turned into cursed energy for the curse to use.

Extension Technique "Shredder Shell": coats the curse's body with its technique to shred and consume anything through touch alone, turning the things shredded into ce. This is much weaker than the original technique, and more effective when the curse coats its fingers or head.

Cursed energy property "spin": an equally original ce property that it uses to activate its chainsaws and give itself momentum by forcing joints to rotate. Ce is limited to its own body and too strong/intense of a movement could break a limb.

:steam happy:

I'm sure someone already made this but...

Cursed Technique "Out of Sight, Out of Mind": Anything that the user isn't aware of or doesn't believe in cannot and does not affect them. Counters speed blitzing and invisible forces or defense/attack like infinity - if the user doesn't know infinity exists, or doesn't believe it exists, then they can bypass it. The user isn't aware of their own technique. This isn't affected by the user's emotional state, only what they believe. This also affects things the user less than 50% believes in, so confusion doesn't counter the technique. The user is also unable to see cursed energy and thus also can't see anything made using it - techniques, spirits, etc - and they're also unable to manipulate ce themselves due to a subconscious binding vow.

Examples: bypassing Gojo's infinity due to not knowing it exists. Being unaffected by cursed spirits due to being unable to see or hear them. Not being hurt by a bullet because he doesn't know if it landed or not. Not hearing the shikigami in the culling games that explain the rules due to not being aware of ce or spirits, thus not being affected by the rules - the character idea originated from when Kenjaku unlocked people's cursed techniques, with the user with this technique being some moron skit character for jujutsu stroll.

"Cursed Craftsmanship": An innate technique owned by sewists, blacksmiths, painters, and carvers that allows turning any material into a shikigami through extensive personal shaping and emotional, ce, and ct imbuement into the object they create. The abilities and emotions the shikigami possess match the emotions of the crafter, the form it was shaped into, and the skills of the shaper. Note that the less the creator cares about an object the weaker it is, which prevents mass production.

Cursed Sewing: If the Cursed Craftsman is a sewist then they can produce clothing that is sentient, with the fibers acting as muscles. Used for convenience and assistance.

Cursed Smithing: If the Cursed Craftsman is a blacksmith then they can produce sentient weapons, armor, or tools. Used for battle and protection.

Cursed Carving (and 3d printing, 3d crochet, and origami): If the Cursed Craftsman is a carver then they can produce sentient carvings from any material. Used to make soldiers. The closest to the average shikigami.

Cursed Painting (and drawing): If the Cursed Craftsman is a painter/drawer then they can produce sentient paintings. The weakest of Cursed Craftsmanship due to the 2d shape but also the hardest to detect. Used to make spies and portals.

Shikigami Abilities: Their senses are based on the replicas of sensory organs made on the shikigami - eyes, nose, antenna, etc - and shikigami must be guided manually if they lack sensory organs (all shikigami have a sense of touch). Their strength is based on the material that makes it and the strength/amount of the ce infused. Their abilities are based on intent and execution - if the creator wants it to speak then it needs vocal cords, if they want it to shoot bullets then it needs a seemingly functional barrel, trigger (unless it shoots itself), etc. Abilities and senses are better or worse based on execution, ce imbued, and the creator's belief (Warhammer Orc type stuff).

Art-specific abilities: Cursed Sewists (and 3d crocheters) can manipulate whatever fiber they are most familiar with. Cursed Smiths can assist in and speed up the process of someone else's making of a cursed tool. Cursed Carvers can give a shikigami a ct by perfectly copying the ct engraving into the created brain of the shikigami. Cursed Painters/Drawers can have matching - similar or perfectly copied - art act as paired portals.

Cursed Technique Reversal "Purification": Purification allows removing the cursed energy and ct from an object or tool, with difficulty and cost based on the object.

Maximum Technique "Artificial Child": The saying that children are living messages we send to a time we will never see fits the maximum technique perfectly. The maximum is limited to Cursed Carving and Cursed Smithing, where a womb and fetus are created with incredible care using their favorite materials (cloth, metal, paper). The shikigami created is special (literally, not grade-wise), as it learns much quicker, grows, and physically changes based on its environment and beliefs.

Blood Manipulation Reversal

Everyone's heard theories before. Some say it's controlling others' blood, some say it doesn't have a reversal. I have my own idea.

We could all agree that Blood Manipulation is a technique that has blood go from point A to point B, right? Well, what if the reversal is having blood go from point B back to point A?

Imagine the possibilities: reversing actions, having piercing blood come back like a linear boomerang, getting recently lost blood back.

Wouldn't this work and make sense? Or am I missing something?

My idea for the most complicated and difficult to learn learnable technique (also my first ever post on reddit)

"Adaptation": A technique made by a man who saw Mahoraga and desired a similar ability, spending years making it. It functions like Mahoraga's adaptation but with specific requirements.

Requirement 1, Tool: The Adaptation user must have a cursed tool, with the technique usually failing when the tool breaks since the tool acts as a "replacement" for Mahoraga's wheel, the tool also gains any adaptation that the user gains. Tool grade - a fourth grade cursed tool would mean more cursed energy required for Adaptation, while a special grade tool would greatly lessen energy needed for Adaptation. The tool can be anything, meaning it could be a sword, glasses, clothing, etc. The tool can be repaired, but doesn't work - or works worse, as in costing more ce - while broken. A tool isn't absolutely required, but Adaptation is incredibly expensive without one, with even a grade four tool helping.

Requirement 2, Understanding: The user must understand everything about a phenomenon to use Adaptation against it. Resistance/negation - the amount of resistance/negation can be chosen from 1% to 100%, with higher percentage costing more energy. Though, with enough practice, Adaptation can be activated with partial knowledge, with the maximum Adaptation % being based on knowledge, like only knowing 43% of a phenomenon means a maximum of 43% adaptation. Activation with partial knowledge costs more - having only 50% knowledge means using 1-25-50% adaptation costs the same as 2-50-100%. Understanding can be gained through reading, seeing, experiencing, or sensing the phenomenon, this means it can be done outside of fighting through study but can only be completed through experience.

Ce cost: Ce cost is a constant drain while an adaptation is active. The more complex or powerful the thing being adapted to is, the higher the cost, with the most expensive adaptations being for the soul, anti-techniques like jacobs ladder, and domains, with the easiest adaptation being physical attacks. Vagueness - more vague adaptations cost more energy, meaning adaptation to physical force costs more than adaptation to blunt force

Domain adaptation: Adapting to a domain requires Adaptation to have full 100% resistance of the domain through full understanding of it before the user gets trapped inside, since any less than 100% and Adaptation will be unusable in the domain. Domain rules - 100% adaptation would mean immunity to the rules, allowing the user to do something like attacking in Higuruma's domain by having attacks be perceived as not violent or be immune to infinite void by having information processed and pushed out through their tool.

How: Adaptation is done through the reshaping of the user's cursed energy - which uses a binding vow to become the shape required to adapt. The user also has enhanced ce manipulation by proxy, which can allow easier learning of other learnable techniques. Training is done by making ce take different shapes over and over.

Reversal: Adaptation doesn't have a defined reversal, but rct is used if it's needed to adapt to a phenomenon. An Adaptation user usually has rct due to how Adaptation works with its requirements.

Maximum Technique "Material": The act of changing ce properties consciously, like making ce act like water, fire, razors, or rock. Requires understanding of the materials and costs twice the ce amount as required to be resistant to the material.

Limits: Adaptation can allow resistance to any attack and ability to pierce any defense when adapted to said offense or defense. Adaptation cannot grant resistance to absolute rules of reality like death. Someone that recently learned Adaptation will have limited abilities, probably at most being able to adapt to physical attacks and basic ce reinforcement, while more skilled users can do anything described above.

In short: Mahoraga's adaptation but much more situational and costly.