Pain Keeper vs Achak the Wendarin

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Pain Keeper	Dark Elves	Void	HP	Rare	HP 21% Place: Crypts
Achak the Wendarin	Demonspawn	Force	Support	Epic	Defence 25% Place: All battles

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Pain Keeper	60	6	19320	969	771	102	15	50	40	0
Achak the Wendarin	60	6	17505 -1815	947 -22	1189 +418	94 -8	15	50	30 -10	15 +15

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	-
Achak the Wendarin	Devour All Hope Formula: 3.5ATK Formula: 0.15TRG_STAMINA Attacks 1 enemy. Has a 30% chance of decreasing the duration of 1 random buff if the target is under a [HP Burn] debuff. Also has a 30% chance of decreasing the target’s Turn Meter by 15% if they are under a [Freeze] debuff.	Cannibal Might Places a [Block Debuffs] buff on all allies for 1 turn and a 25% [Strengthen] buff on all allies for 2 turns. Cooldown: 5 Block Debuffs Strengthen	Frostfire Gale Formula: 5.5*ATK Attacks all enemies. Has a 70% chance of placing a [Freeze] debuff for 1 turn on enemies whose ATK is higher than their DEF. Has a 70% chance of placing a [HP Burn] debuff for 1 turn on enemies whose DEF is equal to or higher than their ATK. Cooldown: 5 Freeze HP Burn	Twisted Hunger [P] Formula: 0.05TRG_B_HP Formula: 0.1MAX_STAMINA Heals all allies by 5% of their MAX HP every time an enemy under a [HP Burn] debuff gets a turn. Fills the Turn Meters of all allies by 10% every time an enemy under a [Freeze] debuff gets a turn.