Arena

System

• A bug appears to have been fixed where undoing a sell of a Prismatic Item would raise GoH Ornn's prices.

Augments

Double Tap

• Tier: Gold -> Prismatic

Serve Beyond Death

• Decay Duration: 3/6 seconds -> 4/8 seconds

Champions

Ambessa

• E Cooldown: 13/12/11/10/9 seconds -> 15/14/13/12/11 seconds
• R Passive Armor Pen: 10/20/30% -> 7.5/15/22.5%
• R AD Ratio: 80% AD -> 70% AD

Garen

• P Out of Combat Timer: 8 seconds -> 4 seconds
• W Resists per Kill: 0.2 -> 0.5
• W Max Resists: 30 -> 60

Gragas

• P Cooldown: 50% reduction -> 8 (-1.5 at levels 6/11/16) seconds
  • 6/5/4/3 seconds -> 8/6.5/5/3.5 seconds

Kled

• Remount Cooldown: 12 seconds -> 5 seconds

K'Sante

• E HP Ratio: 13.5% bonus Health -> 15% bonus Health

LeBlanc

• R Cooldown: 45/35/25 seconds -> 30/20/10 seconds

Renata Glasc

• R Cooldown reverted to Summoner's Rift value.

Renekton

• W Cooldown reverted to Summoner's Rift value.

Senna

• Q AD Ratio: 60% bonus AD -> 75% bonus AD

Tahm Kench

• W Cooldown: 21/20/19/18/17 seconds -> 16/15/14/13/12 seconds
• E Out of Combat Timer: 3 seconds -> 2 seconds

Teemo

• Q Base Damage reverted to Summoner's Rift value.

Vel'Koz

• R Cooldown reverted to Summoner's Rift value.

Zaahen

• Q AD Ratio: 10/20/30/40/50% bonus AD -> 17.5/25/32.5/40/47.5% bonus AD

Zilean

• R Coodlown: 120/90/60 seconds -> 150/120/90 seconds

Items

Ardent Censer

• Heal & Shield Power: 12% -> 10%

Lord Dominik's Regards

• AD: 30 -> 45

Mortal Reminder

• AD: 30 -> 40

Redemption

• Heal & Shield Power: 12% -> 10%

Serylda's Grudge

• Armor Pen: 40% -> 45%
• Slow HP Threshold: 50% -> 60%

Staff of Flowing Water

• Heal & Shield Power: 14% -> 10%

Sword of Blossoming Dawn

• Heal AP Ratio: 7% -> 10%

https://preview.redd.it/4vbg6dvj8xih1.png?width=1274&format=png&auto=webp&s=e831ab74b0821865f10d70f10cd20ff80f14b6f6

I genuinely cannot even be mad about this.

This is one of the best jokes riot has ever made against me.

Arena

Champions

Aurelion Sol

• Q Max Health Damage per Stack reverted to 0.031% per Stack
• E Cooldown reverted to 12 seconds.

Bel'Veth

• P AS per Stack Levels 6-10: 0.1% -> 0.08%
• P AS per Stack Levels 11+: 0.15% -> 0.10%
  • Level 18 AS per Stack: 2% -> 1.5%
• R Bonus Health reverted to 100/250/400

Gnar

• E Max Health Damage: 6% maximum Health -> 8% maximum Health
• E Attack Speed: 40/45/50/55/60% -> 50/55/60/65/70%
• W Max Health Base Damage: 6/8/10/12/14% -> 10/12/14/16/18%
• R Cooldown: 90/60/30 seconds -> 70/50/30 seconds
• Potential future changes to Mega Gnar bonus Health and Rage cooldown.

Heimerdinger

• Q Base Damage reverted to 7/11/15/19/23

LeBlanc

• P Cooldown: 10 seconds -> 5 seconds
• Q Base Damage: 85/110/135/160/185 -> 105/130/155/180/205
• Q Cooldown Refund on Kill: 60% -> 100%
• E Cooldown: 14/13.25/12.5/11.75/11 seconds -> 12/11.25/10.5/9.75/9 seconds

Mordekaiser

• R Stat Steal reverted to 10%

Ornn

• W Cooldown: 10 seconds -> 10.5/10/9.5/9/8.5 seconds

Poppy

• Q Max Health Damage reverted to 7/7.5/8/8.5/9%
• W Bonus Resists reverted to 16%
• W Cooldown reverted to 20/18/16/14/12 seconds

Rek'Sai

• P Fury Consumption Healing: 9-20% maximum Health -> 10-45% maximum Health
• BurQ Prey Seeker Cooldown: 10 seconds -> 7.5 seconds
• Burrowed Bonus Move Speed: 5/10/15/20/25 -> 10/20/30/40/50
• BurE Tunnel Cooldown: 18/17/16/15/14 seconds -> 9/8/7/6/5 seconds
• BurE Tunnel Reuse Cooldown: 6/5/4/3/2 seconds -> 4/3/2/1/0 seconds

Samira

• R Damage per Bullet reverted to 20/40/60/80/100

Shaco

• Q AD Ratio: 60% bonus AD -> 85% bonus AD
• E AD Ratio: 80% bonus AD -> 100% bonus AD

Sona

• W Cooldown: 10 seconds -> 13 seconds

Soraka

• W Cooldown: 6/5/4/3/2 seconds -> 7/6/5/4/3 seconds

Swain

• R Healing HP Ratio: 1.5% bonus Health per second -> 1% bonus Health per second

Varus

• W Cooldown: 40 seconds -> 20 seconds
• E Cooldown: 18/16/14/12/10 seconds -> 16/14/12/10/8 seconds

Volibear

• Q AD Ratio: 60% bonus AD -> 100% bonus AD
• All W changes reverted to Summoner's Rift values.
• All E changes reverted to Summoner's Rift values.

Warwick

• Q Cooldown: 8/7.5/7/6.5/6 seconds -> 7/6.5/6/5.5/5 seconds
• E Cooldown: 15/14/13/12/11 seconds -> 13/12/11/10/9 seconds

Items

Sterak's Gage

• Bonus AD: 45% base AD -> 50% base AD

Sundered Sky

• HP: 350 -> 400
• Heal AD ratio corrected to base AD.

Void Immolation

• Immolate Health Ratio: 7% max Health -> 10% max Health

https://preview.redd.it/7b2binb5hjgh1.png?width=1017&format=png&auto=webp&s=17092ac68dc0ec2990f2787eccc45073a2192da6

I absolutely love standing still for 3 seconds to be completely unstoppable for the next 3 and to keep repeating that process 3-5x in a fight. This is what riot truly wanted arena to be.

Arena has been having a lot of Shadow Changes lately and it is pissing me off, one argument that players use that supports shadow changes would be that its a "for fun mode" but I heavily disagree, it is absurd that the players does not have the right to know what a change on a gamemode does and it further supports my argument that riot is slowly killing off Arena to make space for Classic and other gamemodes.

1. First let us start off with Combo Breaker.

On patch 26.2 Riot introduced an additional mechanic with Combo Breaker where "(NEW) When combo breaker triggers you take 10% + 5% for each time this has triggered max HP true damage. This resets on death and on combat end." They also buffed it to where they "reduced CC chain duration from 5 of the last 7 seconds ⇒ 4 of the last 7 seconds."

This additional mechanic was then SHADOW REMOVED on either 26.9 / 26.10 with the arrival of 3v6 gamemode. (Same patch augment Mercy was introduced)

And now on patch 26.15 Riot has Shadow Buffed Combo Breaker where they reduced the cc timer from 4 to 3, ONE SINGLE SECOND. This makes it so that Morgana Q at max rank with no tenacity is enough to trigger it which is absolutely bullshit. It makes a mockery of tanks and buffs ADCs (yet again) so they can run away or fight a second earlier.

https://preview.redd.it/h4bobbfn44gh1.png?width=1920&format=png&auto=webp&s=5c4691722973337bb54f06962d0f69b6e9c14203

2. Evelynn Guest of Honor
   Evelynn Guest of Honor has an "easter" egg where if enough players dance everyone gets an additional 50 HP (roughly 14-15 players) this was SHADOW NERFED in patch 26.14 where it now requires ALL 18 players to dance. As you can tell this is now nearly impossible as it requires the effort of the entire lobby and one non-fun haver person to not dance to negate everyone's efforts (I got it once in like a total of 15 evelynn games)

Now am I mad that it got nerfed? Yes
Would I be less mad if riot had notes stating that they nerfed the very fun easter egg in which more than 85% of the entire lobby appreciates every single time eve is picked? Yes
Does riot shadow nerfing it further play into the part where its rarity is now befitting of the name "Easter Egg"? Yes and at the same time it is cringe when nearly everyone agrees which makes no sense as to why they would nerf it.

3. Some Augments and by some i mean glass cannon (pls mention if you know others I know)

Some of you might not know that Glass Cannon got shadow buffed to where Melees now deal 50% of their premit damage as true dmg at max rank (Ranged champions having half of that). This was introduced in 26.14 same as the cringe evelynn change. You can actually still see the old values in lol wiki.

https://preview.redd.it/a0ocuqnq44gh1.png?width=1616&format=png&auto=webp&s=fbf3e7d162d34563feb6bcaeb3f11736943e4823

4. Triple Shardholder Easter Egg (Riot Games.xdddddd)

Shardholder got a SHADOW BUFF easter egg on Patch 26.14 (same as cringe eve change) where if your team has three shardholders you now get an additional bonus based on the LAST person in your team to get shardholder.

And on this patch it got SHADOW NERFED (H_tler not dead yet calm down).
I do not know the exact formula change but all we have to know is that you gain slightly less bonus.

Dont translate quinns name, this picture was taken today on patch 26.15 SEA/SG server.

If you know any other shadow changes in this gamemode please do tell and if you have proof of it thats also very welcome.

All I ask is for transparency not some Sherlock Holmes bullshit.

Arena

Augments

Critical Rhythm

• Max Level: 3 -> 2

Demonic Clasp

• Max Level: 3 -> 2
• Base Damage: 100/200/250 -> 100/300

Earthwake

• Max Level: 3 -> 2

Hive Mind

• Bee AD Ratio: 20% bonus AD -> 25% total AD
• Starting Bees: 1/2/3 -> 2/4/6

Laser Eyes

• Max Level: 3 -> 2
• Laser Length: 600/800/1000 units -> 600/1000 units

OK Boomerang

• Rescripted, should properly launch two boomerangs at level 2.

Ominous Pact

• Maximum Omnivamp: 15/25% -> 20/35%
• Maximum Move Speed: 50/75% -> 50/100%

Slow and Steady

• Disabled.

Spellwake

• Max Level: 3 -> 2
• Damage: 100-325 (+145/165/185% bonus AD) (+20/30/40% AP) -> 100-325 (+165/185% bonus AD) (+30/40% AP)

Tap Dancer

• Max Level: 3 -> 2

Champions

Akali

• P Move Speed: 30/40/50/60% (Levels 1/6/11/16) -> 40/55/70/85% (Levels 1/6/11/16)
• W Energy Gain: 150 -> 200
• W Cooldown: 15 seconds -> 15/13/12/11/10 seconds

Bard

• W Max Healing Charge Time: 5 seconds -> 2.5 seconds
• W Movespeed: 6% per 100 AP -> 8% per 100 AP
• W Ammo Cooldown: 10 seconds -> 8 seconds
• E Cooldown: 20/18/16/14/12 seconds -> 18/16/14/12/10 seconds

Elise

• Spider E Cooldown: 22/21/20/19/18 seconds -> 17/16/15/14/13 seconds

Kai'Sa

• P changes reverted to Summoner's Rift values.
• Q changes reverted to Summoner's Rift values.

Locke

• P On-Hit Base Damage: 5-40 -> 7.5-60
  • Max Damage: 10-80 -> 15-120
• W Base Heal: 40/70/100/130/160 -> 80/140/200/260/320
• W Base Heal Cap: 150-450 -> 225-675
• R Cooldown Reduction on Pickup: 20 seconds -> 50 seconds

Nocturne

• P Base Heal: 13-32 -> 15-50
• P Damage: 120% AD -> 130% AD
• P Crit Damage Bonus: 110% AD -> 120% AD
  • As a reminder, Nocturne P would calculate crit damage as: 120% AD * total crit damage, for effectively 240% AD without any bonus crit damage.
• R Cooldown: 140/115/90 seconds -> 100/70/40 seconds

Seraphine

• Q changes reverted to Summoner's Rift values.

Tahm Kench

• E Damage to Grey Health Ratio: 15/23/31/39/47% -> 23/29/35/41/47%
• E Out-of-Combat Timer: 4 seconds -> 3 seconds

Thresh

• Soul Multiplier: 100% -> 300%
• W Cooldown: 21/20/19/18/17 seconds -> 15/14/13/12/11 seconds
• E Full Charge Duration: 10 seconds -> 5 seconds
• R Base Damage: 250/400/550 -> 350/500/650
• R Cooldown: 120/100/80 seconds -> 90/60/30 seconds

Twisted Fate

• R Recast Duration: 6/8/10 seconds -> 3/4/5 seconds
• R Cooldown: 170/140/110 seconds -> 40/30/20 seconds

Warwick

• P Healing Amplifier: 250% -> 300%
• W Cooldown: 80/70/60/50/40 seconds -> 40/35/30/25/20 seconds
• E Damage Reduction: 35/40/45/50/55% -> 40/45/50/55/60%

Zac

• W Cooldown: 6 seconds -> 5 seconds
• R changes reverted to Summoner's Rift values.

Items

Cappa Juice

• Max Purchasable: 100 -> 40

Lich Bane

• Spellblade AP Ratio: 66% AP -> 70% AP

From Kay-Haru's post

Arena

Augments

Critical Rhythm

• Appears to be getting a cooldown of 4 seconds. Getting a stack will likely refresh the entire duration.

Double Tap

• Appears to be getting a cooldown of 4 seconds.

Energetic Caster

• Still disabled, but appears to be getting worked on with its synergy with Divine Intervention.

Stackosaurus Rex

• No longer grants bonus stacks to Augments or Items.

Twinfire

• Removed

Upgrade Collector

• Execution Increment: 1/1.25% -> 500/1%
  • Yeah I don't think this one was meant to ship.

Upgrade Hubris

• Removed

Champions

Ambessa

• Q1 bonus AD Ratio: 60% -> 45%
• Q2 bonus AD Ratio: 90% -> 70%

Gragas

• P Heal Ratio reverted to SR: 3.5% max Health -> 5.5% max Health
• E Base Damage reverted to SR: 80/115/150/185/220 -> 80/125/170/215/260

Heimerdinger

• Turret Beam Damage reverted to SR: 30/45/60/75/90 (+45% AP) -> 20/40/50/80/100 (+55% AP)

Illaoi

• Q Tentacle Damage Amp reverted to SR: 4/8/12/16/20% -> 10/15/20/25/30%

Kled

• Re-Mount Cooldown: 15 seconds -> 12 seconds

Locke

• Q Cooldown: 10/9/8/7/6 seconds -> 8.5/7.5/6.5/5.5/4.5
• E AP Ratio: 40% -> 65%
• E Cooldown: 10 seconds- > 8 seconds
• R Cooldown: 120/100/80 seconds -> 90/75/60 seconds

Quinn

• P Mark Cooldown: 7-2.56 seconds -> 5-1.83 seconds
• E Cooldown: 12/11/10/9/8 seconds -> 10/9/8/7/6 seconds

Rakan

• Q Base Damage: 70/115/160/205/250 -> 95/140/185/230/275

Samira

• R Base Damage per Bullet: 10/20/30 -> 15/30/45

Skarner

• E Post Grab Distance: 675 units -> 1000 units
• R Base DamagE: 250/350/450 -> 350/450/550
• R Bonus Speed: 40% -> 60%

Swain

• R Demonic Energy Decay: 10 per second -> 15 per second
  • After 5 seconds in combat: 15 per second -> 20 per second
• R Demonic Energy Drain: 20 per second -> 25 per second

Yorick

• Q Missing Health Damage reverted to SR: 3/4/5/6/7% -> 4/5/6/7/8%
• R Maiden Health Modifier: 70% -> 100%

Zoe

• P AP Ratio: 35% -> 40%
• Q AP Ratio: 60% -> 70%
• W Bolt Base Damage: 5/8.33/11.67/15/18.33 -> 6.67/11.67/16.67/21.67/26.67
  • Total Base Damage: 15/25/35/45/55 -> 20/35/50/65/80
• R Cooldown: 11/8/5 seconds -> 8/5/2 seconds

Items

Kraken Slayer

• Attack Speed: 35% -> 40%

Navori Flickerblades

• Attack Speed: 35% -> 40%

Phantom Dancer

• Attack Speed: 60% -> 65%
• Move Speed: 8% -> 10%

Rapid Firecannon

• Attack Speed: 30% -> 35%

Rite of Ruin

• Shield tracker removed.

I'll post it here since no one seems to have posted it yet.

Taken from Kay-Haru's post

Arena

Augments

Chroma Flux

• Cooldown: 15 seconds -> 10 seconds

Final Form

• Max Health Shield: 30/45% -> 30/60%
• Buff Duration: 5 seconds -> 7.5 seconds

Hive Mind

• Base Damage: 40-100 -> 60-120

Juiced

• Mana Spent Threshold: 400 -> 300

Overflow

• Mana Spent Threshold: 400 -> 300

Quest: Rite of the Forge God

• Item Stat Amp: 35% -> 40%

Spellcraft

• Base Damage: 50 -> 100
• Slow per Blue Shard: 40% -> 45%

Upgrade Collector

• Execute per Stack: 1/1.5% -> 1/1.25%

Champions

Elise

• P On-Hit Base Damage: 12/22/32/42 -> 15/25/35/45
• P On-Hit Base Healing: 6/8/10/12 -> 10/15/20/25
• E Stun Duration: 1.6/1.8/2/2.2/2.4 seconds -> 1.9/2.05/2.2/2.35/2.5 seconds
• E Passive Damage/Healing Amp: 40/55/70/85/100% -> 60/75/90/105/120%

Gnar

• W On-Hit Base Damage: 0/10/20/30/40 -> 20/30/40/50/60
• E Cooldown: 16/14/12/10/8 seconds -> 12/11/10/9/8 seconds

Samira

• R Base Damage: 5/10/15 -> 10/20/30

Zeri

• Excess AS to AD Ratio: 60% -> 80%
• E AP Ratio: 20% -> 30% AP
• E Cooldown Reduction On-Hit: 1.5 seconds -> 0.75 seconds
• W AP Ratio: 50% AP -> 100% AP
• R Bonus MS: 15% Move Speed -> 20% Move Speed
• R MS per Stack: 1.5% Move Speed -> 2% Move Speed

Items

Eclipse

• AD: 50 -> 60
• Haste: 10 -> 15
• Max Health Damage: 8% (5.33% Ranged) -> 10% (6.67% Ranged)

Hellfire Hatchet

• AD: 35 -> 40

Opportunity

• Lethality on Activation: 15 -> 20

Perplexity

• Damage Amp Cap: 15% at 2500 greater max Health -> 15% at 3000 greater max Health

Wordless Promise

• AP/Haste Sharing Ratio: 15% -> 10%
• Cooldown: 60 seconds -> 15 seconds

Systems

Rounds

• Round 15: Item Round -> Augment Round

Stat Anvils

• Two Random Stat Shards (Silver/Gold) are re-enabled.