Helen — Epic Seven Ice Knight: RTA Build, Counters & Win Rate

Helen is a 3-star Ice Knight built around defense scaling and counterattacking. Her basic attack pushes a random ally's turn forward, and her second skill hits a single target, buffs her own Defense for 2 turns, and heals her based on her max Health, with damage on both skills scaling off her Defense. Her ultimate puts her into a counterattacking stance for 3 turns and grants a Speed buff to all other allies for 2 turns; if the enemy uses an attack that hits the whole team, her cooldowns drop by 2 turns. She is a slow, tanky support whose value comes from punishing enemy attacks, speeding up her team, and keeping herself alive rather than from burst damage.

Counters

Teams that rely on big group attacks — Her ultimate stance makes her counterattack, and when she is hit by an attack that targets all allies her cooldowns drop by 2 turns, so heavy area-of-effect attackers actively feed her by triggering counters and refreshing her stance sooner.
Slow, single-target trades — Both her hits scale off Defense and her second skill raises her own Defense while healing her off max Health, so a lone attacker grinding her down struggles to break a tank who hits harder and self-sustains the longer the fight goes.
Drawn-out attrition fights — In a stalling matchup her counterattack stance and Defense self-buff let her chip the enemy on every incoming swing while her HP-scaling heal tops her back up, slowly winning fights where neither side bursts the other down.
Enemies that need to outpace her allies — Her ultimate gives every other ally a Speed buff for 2 turns and her basic attack hands a random ally extra turn meter, helping her side win the turn order against teams banking on going first.

Countered by

Counterattack and buff shutdown — Her whole threat is built on the counterattacking stance and her Defense/Speed buffs; effects that block counterattacks, strip or steal her buffs, or cut their duration neutralize her damage and support at once.
Buff removal and cleansing — She depends on her self-applied Defense buff and the team Speed buff staying up, so an enemy that dispels them leaves her as a slow body with little damage and no tempo edge.
Anti-heal effects — Her self-healing on her second skill is tied to max Health and is her main sustain; an unhealable debuff shuts that recovery off and lets attackers grind her down despite her Defense.
Burst that ignores the stance setup — She is slow with no passive skill and is single-target outside her basic, so a fast team that bursts her or her backline down before her counter stance and Speed buff come online simply outraces her slow, reactive kit.

counterHarsetti56%

counterMort61%

counterStraze56%

counterAfternoon Soak Flan54%

counterBlood Blade Karin53%

Skills

S1Blunt Strike

Attacks the enemy before increasing Combat Readiness of a random ally except for the caster by X. Damage dealt increases proportional to the caster's Defense.

Soulburn −10 soulsCombat Readiness increase effect will be applied to all allies.

S2Wild SwingCD 4

Attacks the enemy before increasing Defense of the caster for 2 turns and recovers Health. Damage dealt increases proportional to the caster's Defense, and amount recovered increases proportional to the caster's max Health.

S3Sword of GraceCD 8

Adopts a counterattacking stance for 3 turns, and increases Speed of all allies except for the caster for 2 turns. After suffering an attack that targets all allies, decreases skill cooldown by 2 turns.