Exactly what it says on the tin.

Is this kit broken?

Probably.

Do I care?

What subreddit do you think you’re on?

One where Phainon WOULDN’T be made broken?

Here we go:

Phainon • Kryos Eirēnē

Ice-Elation

Primary Kit

Basic Attack - Rage, Cooled
Single Target
Regenerates 1 SP
Deal 100% of user’s Attack as Ice Damage. Gain one stack of ‘Emberless.’

Skill - Fury, Abated
AoE
Consumes 1 SP
Deal 120% of Attack as Ice Damage to all enemies. Gain three stacks of ‘Emberless,’ and grant 30% Merrymake to the user for 2 turns.

Enhanced Skill - Sunrise Over Snow
Bounce
Consumes 2 SP
Deal 40% of Attack as Ice Damage 6 times. Gain five stacks of ‘Flawless, Fatal.’ Grant 50% Merrymake to the user.

Ultimate - To We, Who Who At Long Last Exist
AoE
Costs 0 Energy
If the user has, at minimum, 12 stacks of ‘Emberless,’ you may activate this Ultimate, and clear all stacks of ‘Emberless.’ Deal 20% Ice Elation damage for each stack of ‘Emberless’ cleared in this way, distributed evenly among all enemies. Then, enter the ‘Agony, Frozen In A River’ state.
While in the ‘Agony, Frozen In A River’ state, each stack of ‘Emberless’ gained is immediately converted into 2 stacks of ‘Flawless, Fatal,’ and each time this character is targeted by an ally or enemy, gain 2 stacks of ‘Flawless, Fatal.’ Enhance Skill into ‘Sunrise Over Snow.’ Enhance Elation Skill into ‘The Nameless Hero: Khaslana.’ During this state, buffs can reduce in turns, but instead of expiring, are placed in the ‘Rekindled Dream’ state, preventing them from wearing off entirely, and freezing them at 0/1 turns remaining.

Talent - I Endured
-
User gains stacks of ‘Emberless.’ Upon gaining 12 stacks, user may activate Ultimate.
Each stack of Emberless gained throughout the battle increases Elation by 5%, up to a maximum of 130%.
For ever 100 points of Attack over 2000, gain 4% Elation, up to a maximum of 80% Elation.
When the user takes action in any way, gain 1 stack of ‘Emberless.’ When the user is struck by an attack, gain 1 stack of ‘Emberless.’ Start battle with 5 stacks of ‘Emberless.’
During the battle, if the user possesses Certified Banger, deal 30% Ice Elation damage, and convert all Basic Attack and Skill Damage to equal Elation multiplier.

Elation Skill - That Worldbearer Kephale
-
Gain 5 stacks of Emberless and heal 40% Max HP.

Enhanced Elation Skill - The Nameless Hero: Khaslana
-
For each stack of ‘Flawless, Fatal,’ increase Hits Per Action by 1. If the number of stacks exceeds 13, each stack increases Hits Per Action by 2 instead.
For each hit, deal 50% Ice Elation Damage, then 20% of the final damage as an additional instance of True Damage once to the enemy with the highest remaining HP. Remove all stacks of ‘Flawless, Fatal.’

TRACES AND EIDOLONS

28% Crit Damage
16% Crit Rate
25% Elation

A2 - Solar Minimum
-
If user’s Crit Rate is 50% or higher, gain 15% Elation. For each additional 2.5% Crit Rate, gain 5% Elation, up to 100% Elation. If user’s Crit Rate is over 100% in battle, excess Crit Rate is converted into Crit Damage at a 2:1 Ratio.

A4 - Solar Maximum
-
Upon entering battle, for each Chrysos Heir or Ice Character on the team, start with 1 additional stack of ‘Emberless.’ If this effect activates, gain 12% Merrymake for each such activation, up to three. This effect lasts 3 turn(s).

A6 - Cold Fusion
-
For each buff being affected by ‘Rekindled Dream,’ heal 5% maximum HP after attacking if user is in ‘Agony, Frozen In A River.’ Gain 30% Crit Rate.

E1 - Bitter Plastics, Crumble Away
-
Gain 20% Crit Rate. For each stack of ‘Emberless,’ gained in battle, increase Crit Rate by 5% for the remainder of the battle, up to 6 times.

E2 - I Will Shatter You All
-
After using ‘The Nameless Hero: Khaslana,’ immediately also cast ‘That Worldbearer Kephale.’ Immediately after casting ‘Sunrise Over Snow,’ additionally also cast ‘Fury, Abated.’ After casting any skill in this way, gain 4% Defense Ignore, up to 20%.

E4 - Creeping Up My Brain, Learning From My Pain
-
Double all HP Restored to the user. If the user dies while in ‘Agony, Frozen In a River,’ revive and heal 33,550,337 HP. This may occur once per battle.

E6 - Send Death To Isolation
-
Gain 30% All-Type Res Pen. Every time the user gains ‘Emberless,’ or ‘Flawless, Fatal,’ gain 1 additional stack of ‘Emberless.’ Gaining ‘Emberless’ or ‘Flawless, Fatal’ in battle increase Crit Damage by 10%, up to 300% for the rest of the battle. 15% of the user’s Crit Damage is converted into Elation in battle.