Pain Keeper vs Sepulcher Sentinel

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Pain Keeper	Dark Elves	Void	HP	Rare	HP 21% Place: Crypts
Sepulcher Sentinel	Knight Revenant	Force	Defence	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
Sepulcher Sentinel	60	6	16185 -3135	903 -66	1321 +550	98 -4	15	50	45 +5	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
Sepulcher Sentinel	Sword of Withering Formula: 3.3*DEF Attacks 1 enemy. Has a 40% chance of placing a 50% [Decrease ATK] debuff for 2 turns. Decrease ATK 50%	Sepulcher Shield Places a 60% [Increase DEF] buff and a [Block Debuffs] buff on all allies for 2 turns. Cooldown: 5 Block Debuffs Increase DEF 60%	Untouched By Death [P] Formula: -1*DMG_MUL Has a 25% chance of completely blocking incoming damage when an ally is attacked. Occurs once per turn. Will only block damage for the targeted ally if multiple allies are attacked at the same time. Cooldown: 1