Bloodfeather vs Pain Keeper

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Bloodfeather	Orcs	Force	Attack	Epic	Crit rate 20% Place: Crypts
Pain Keeper	Dark Elves	Void	HP	Rare	HP 21% Place: Crypts

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Bloodfeather	60	6	13875	1542	837	102	15	60	30	0
Pain Keeper	60	6	19320 +5445	969 -573	771 -66	102	15	50 -10	40 +10	0

Bloodfeather	Hunt Down Formula: 3.8*ATK Attacks 1 enemy. Has an extra 30% chance of inflicting a critical hit.	Armor Breaker Formula: 5.3*ATK Places a 60% [Decrease DEF] debuff for 2 turns, then attacks 1 enemy. Has an extra 30% chance of inflicting a critical hit. Cooldown: 5 Decrease DEF 60%	Charged Shot Formula: 6.1ATK Formula: 0.5TRG_STAMINA Attacks 1 enemy. Places a 30% [Decrease SPD] debuff for 2 turns. Decreases the target's Turn Meter by 50%. Has an extra 30% chance of inflicting a critical hit. Cooldown: 4 Decrease SPD 30%
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