Pain Keeper vs Corpulent Cadaver

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Pain Keeper	Dark Elves	Void	HP	Rare	HP 21% Place: Crypts
Corpulent Cadaver	Undead Hordes	Spirit	HP	Rare	Defence 15% 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
Corpulent Cadaver	60	6	20640 +1320	617 -352	1035 +264	96 -6	15	50	40	0

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
Corpulent Cadaver	Crushing Mass Formula: 0.19HP Formula: 0.3SHIELDS_SUM_VALUE Attacks 1 enemy. Inflicts additional damage if this Champion is under a [Shield] buff. The additional damage is equal to 30% of the value of the [Shield] and cannot exceed 200,000.	Disgusting Display Places a [Shield] buff on this Champion equal to 20% of their MAX HP for 3 turns. Grants an Extra Turn. Cooldown: 4 Shield	Baleful Tenacity Formula: 0.3*HP Attacks 1 enemy. Has an 80% chance of placing a [Provoke] debuff for 1 turn. Cooldown: 4 Provoke