Wurlim Frostking vs Ruella

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Wurlim Frostking	Knight Revenant	Void	Defence	Legendary	Defence 33% Place: All battles
Ruella	Sylvan Watchers	Spirit	Attack	Epic	Accuracy 40 Place: Dungeons

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Wurlim Frostking	60	6	19650	1035	1233	100	15	50	30	20
Ruella	60	6	15855 -3795	1376 +341	870 -363	112 +12	15	50	30	0 -20

Wurlim Frostking	Winds of Winter Formula: 4*DEF Attacks 1 enemy. Has a 30% chance of placing a [Freeze] debuff for 1 turn. This debuff cannot be resisted. Places a [Perfect Veil] buff on the ally with the lowest HP for 2 turns. Perfect Veil Veil Freeze	Frostbite Blast Formula: 4*DEF Attacks all enemies. Has a 70% chance of placing a 50% [Decrease ATK] debuff and a 50% [Decrease ACC] debuff for 2 turns. These debuffs cannot be resisted. Also places a 30% [Increase C. DMG] buff on all allies for 2 turns. Cooldown: 4 Decrease C. DMG Decrease ACC 50% Decrease ATK 50% Increase C. DMG	Icegrave Armor Places a 25% [Strengthen] buff and a 60% [Increase DEF] buff on all allies for 2 turns. Has a 60% chance of placing a [Freeze] debuff on all enemies for 1 turn. This debuff cannot be resisted. Cooldown: 5 Freeze Strengthen Increase DEF 60%
Ruella	Harassment Volley Formula: 1.5ATK Formula: 0.05MAX_STAMINA Formula: -CHANGED_STAMINA_AMOUNT Attacks 1 enemy 3 times. Each critical hit has an 80% chance of stealing 5% of the target’s Turn Meter.	No Respite Formula: 2.3*ATK Attacks 1 enemy 3 times. Each hit has a 50% chance of placing a 60% [Decrease DEF] debuff, a 25% [Weaken] debuff and a 30% [Decrease SPD] debuff for 2 turns. Cooldown: 4 Weaken 25% Decrease SPD 30% Decrease DEF 60%	Timed Offensive Formula: 0.2*MAX_STAMINA Fills the Turn Meters of all allies by 20% and places a 30% [Increase C. RATE] buff on all allies for 2 turns. Cooldown: 6 Increase C. RATE 30%