Supreme Elhain vs Pain Keeper

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Supreme Elhain	High Elves	Void	Attack	Legendary	Attack 30% Place: All battles
Pain Keeper	Dark Elves	Void	HP	Rare	HP 21% Place: Crypts

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Supreme Elhain	60	6	13875	1509	1145	102	15	63	40	0
Pain Keeper	60	6	19320 +5445	969 -540	771 -374	102	15	50 -13	40	0

Supreme Elhain	Exemplar of Strikes Formula: 2*ATK Attacks 1 enemy 2 times. Each hit transfers a random debuff from this Champion to the target.	Let None Live Formula: 4ATK(1+0.1*TRG_DEBUFF_COUNT) Attacks all enemies. Damage increases by 10% for each debuff on each target. Resets the cooldown of the [Crack Shot] skill if this attack kills an enemy. Cooldown: 4	Crack Shot Formula: 6*ATK Attacks 1 enemy. Will ignore [Ally Protection], [Strengthen], and [Shield] buffs. Grants an Extra Turn if this attack kills an enemy. Cooldown: 6	Implacable [P] Formula: 0.2*DMG_MUL Immune to [Decrease ATK] debuffs. Inflicts 20% more damage against targets whose ATK is lower than this Champion’s ATK.
Pain Keeper	Unflagging Advance Formula: DEF+ATK Formula: 0.1*MAX_STAMINA Attacks 1 enemy 2 times. Fills this Champion's Turn Meter by 10%.	Spectacular Sweep Formula: 0.12HP+2ATK Formula: 0.15*HP Attacks all enemies, then heals all allies by 15% of this Champion's MAX HP. Cooldown: 5	Combat Tactics Decreases the cooldowns of all ally skills by 1 turn. This skill can have its cooldown reduced by other skills that reduce cooldowns by 1 turn. Cooldown: 7	-