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Keller Build Guide

Keller portrait

Keller

Warrior class icon
Monochrome Realm
SSR Ice Warrior DPS

Keller is a SSS normal-attack carry who transforms: her ULT deals 1711.1% AOE and puts her into [Ice Giant] (+172.2% ATK, +73.3% max HP, +344.4% DEF, +58.9% all resist), her auto stacks normal-attack damage and cooldown reduction, and every normal hit applies [icefang] (−shield gain, −healing) and [Shatter] (−9.8% DEF, up to 10). In Ice Giant form her normals ARE the damage: and they disable enemy sustain while shredding armor.

Skill Priority

Skill level recommendations:

1
Auto Skill: Glacier Dance
Level 14
Cooldown: 5.0s Grants the user the [Dance of the Glacier] buff. While possessing [Dance of the Glacier], normal attack damage is increased by 29.4%, and normal attack cooldown is reduced by 12.2%. [Dance of the Glacier] can stack up to 5 times and lasts for 8 seconds. When [Dance of the Glacier] reaches 5 stacks and deals normal attack damage to an enemy, it will additionally deal ice damage equal to 12.2% of the user's attack power. This additional damage is treated as normal attack damage.
2
Ultimate: Ice Age
Level 14
Energy Cost: 4 Cooldown: 5.0s Deals ice damage equal to 1711.1% attack power to all enemies and increase their skill cooldown by 40% for 8 seconds. Enters the [Ice Giant] state, increasing MaxHP by 73.3%, attack power by 172.2%, defense by 344.4%, and resistance to all attributes by 58.9% for 8 seconds. When performing a normal attack while in the [Ice Giant] ultimate skill state, an additional ice damage equal to 51.7% attack power will be dealt as normal attack damage.
3
Passive: Cold Moon Flowing Light
Level 14
Each time a normal attack hits an enemy, apply [icefang], reducing the enemy's shield gain 7.3% and healing received 4.9%, up to 15 stacks. Each time a normal attack hits an enemy, apply [Shatter], reducing their defense 9.8% for 10 seconds, up to 10 stacks.
4
Normal Attack: Ice Mang
Level 14
Cooldown: 2.0s Deals ice damage equal to 90.6% attack power to all enemy units.

Recommended Memory Cards

These are the best memory cards for Keller:

Afternoon tantrums memory card
Afternoon tantrums ★ Exclusive
Must Have
Increases own attack power by 70%, critical hit damage by 90%, and normal attack damage by 100%. Every 3rd normal attack will deal an additional 75% of attack power as normal attack damage.
Note: Exclusive card: +70% ATK, +90% Crit DMG and +100% normal attack damage, with an extra 75% hit every 3rd normal. Her BiS by a mile.
Stats: HP 6,600 / ATK 480 / DEF 690
Wrong time of appearance memory card
Wrong time of appearance
Highly Recommended
Defense increased by 64% When HP is below 50%, the wearer recovers 2% of maximum HP after attacking When HP is above 50%, damage taken is reduced by 10%, and damage dealt is increased by 40%.
Stats: HP 6,600 / ATK 480 / DEF 690

Alternative Memory Cards

Good alternative options if you don't have the recommended cards:

Halloween candy memory card
Halloween candy
Increases critical hit damage by 60%. When HP is above 30%, the wearer recovers 2% of their maximum HP after attacking, and all damage is increased by 40%.
Stats: HP 6,000 / ATK 600 / DEF 600
Pride or Tsundere? memory card
Pride or Tsundere?
Increases HP by 32% and defense by 60%. When an ally is attacked by a normal attack, the damage taken is reduced by 30%.
Stats: HP 6,600 / ATK 480 / DEF 690
Secret Garden memory card
Secret Garden
Attack increases by 40%, when the wearer's ULT consumes 8 or more energy, damage increases by 40% for 10 seconds
Stats: HP 5,040 / ATK 780 / DEF 474

Runes Priorities

Focus on these rune stats for Keller:

Primary Stat:
Attack% / HP%
Secondary Stat:
HP%

Highly Recommended Stats:

ATK% HP%

Additional Stats:

Crit DMG% HP
Build Note: Kryos 4-piece is made for her: it converts her normal-attack cooldown reduction (which she stacks constantly) directly into Frost damage and Crit DMG. Alpha 4-piece is the simpler fallback.

Recommended Rune Sets:

Kryos.webp rune (4-piece)
4-piece
+
Beth rune (2-piece)
2-piece
Kryos 4-piece + Beth 2-piece
2-piece (Kryos): Frost damage increased by 10%
4-piece (Kryos): For every 10% reduction in Normal Attack cooldown, Frost damage is increased by 4% and Critical Damage is increased by 3.6%, up to a maximum of 5 stacks
2-piece (Beth): Critical Rate increases by 6%

Alternative Builds:

Alpha rune (4-piece)
4-piece
+
Beth rune (2-piece)
2-piece
Alpha 4-piece + Beth 2-piece
2-piece (Alpha): Attack increases by 8%
4-piece (Alpha): Normal Attack damage increases by 30%
2-piece (Beth): Critical Rate increases by 6%

Main Stats by Position

Recommended main stats for each rune position for Keller:

Position 1: Fixed Main Stat

HP (Flat Value)

Always HP - no other options

Position 2: Fixed Main Stat

Attack (Flat Value)

Always Attack - no other options

Position 3: Fixed Main Stat

Defense (Flat Value)

Always Defense - no other options

Position 4: Variable Main Stats

Available Options:
Healing Effectiveness (%) Critical Rate (%) Critical Damage (%) Attack Penetration (%) Attack (%) HP (%) Defense (%)

Pick the recommended stat pair that matches the rune build below.

Position 5: Variable Main Stats

Available Options:
Wind Attribute Damage (%) Fire Attribute Damage (%) Ice Attribute Damage (%) Holy Attribute Damage (%) Chaos Attribute Damage (%) Attack (%) HP (%) Defense (%)

Position 6: Variable Main Stats

Available Options:
Attack (%) HP (%) Defense (%)

Awakening Priority

A2 is the biggest early jump, then A4. A3/A5 raise skill level caps (+2 each) and are dupe-gated: take A6 last for the team-wide bonus.

A1 Good

Critical hit rate increased by 15%, first ultimate skill used upon entering the arena does not consume energy.Gains 1 stack of [Ice Power] after using a skill, increasing normal attack damage by 12.5%, up to a maximum of 5 stacks.

A2 Very Good

Upon entering the arena, you immediately gain 3 stacks of [Dance of the Glacier], increasing critical hit damage by 30%. When [Dance of the Glacier] reaches 5 stacks, your basic attack damage is increased by 50%.

A3 Mid

[Normal Attack], [Skill], [ULT] and [Passive] level and level cap +2

A4 Good

Increases frost</color> damage by 50%. When health drops to 35% or below, instantly restores 75% of maximum health. Can trigger once per battle.

A5 Mid

[Normal Attack], [Skill], [ULT] and [Passive] level and level cap +2

A6 Good

All damage penetrates 20% of frost resistance.

Team Synergy

Good Teammates:

BorsMedusaVeronicaFreyaGluttony - BeelzebubMorgan Le Fay

Bors's +171% ATK window during Ice Giant form is the strongest combo in the game.