Pain Keeper vs Quargan the Crowned

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Pain Keeper	Dark Elves	Void	HP	Rare	HP 21% Place: Crypts
Quargan the Crowned	Lizardmen	Spirit	Support	Epic	-

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
Quargan the Crowned	60	6	17670 -1650	903 -66	1222 +451	103 +1	15	50	30 -10	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
Quargan the Crowned	Nature's Cycle Formula: 4*ATK Attacks 1 enemy. Has a 30% chance of increasing the duration of a random buff on a random ally by 1 turn.	Overgrowth Formula: 0.15*TRG_HP Heals all allies by 15% of their MAX HP and places a [Shield] buff equal to 15% of their MAX HP on all allies for 2 turns. Cooldown: 4 Shield	Attunement Formula: 0 Places a [Perfect Veil] buff and a 50% [Increase ATK] buff for 2 turns on all allies whose ATK is higher than their DEF. Places a [Block debuffs] buff for 1 turn and a 60% [Increase DEF] buff for 2 turns and on all allies whose DEF is higher than their ATK. Cooldown: 6 Increase ATK 50% Block Debuffs Perfect Veil Increase DEF 60%