Wyvernbane vs Pain Keeper

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Wyvernbane	Orcs	Spirit	Attack	Rare	-
Pain Keeper	Dark Elves	Void	HP	Rare	HP 21% Place: Crypts

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Wyvernbane	60	6	12555	1288	903	94	15	57	30	0
Pain Keeper	60	6	19320 +6765	969 -319	771 -132	102 +8	15	50 -7	40 +10	0

Wyvernbane	Hobble Pierce Formula: 3.2*ATK Attacks 1 enemy. Has a 20% chance of placing a 15% [Decrease SPD] debuff for 2 turns. Decrease SPD 15%	Setback Formula: 5.9ATK Formula: 0.2MAX_STAMINA Attacks 1 enemy. Has a 35% chance of decreasing the target's Turn Meter by 20%. Cooldown: 4	Cursefire Spear Formula: 6.1*ATK Attacks 1 enemy. Has a 75% chance of placing a [HP Burn] debuff for 2 turns. Cooldown: 5 HP Burn
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