Pain Keeper vs Tracker

Overall comparison

HERO	Fraction	Element	Type	Rarity
Pain Keeper	Dark Elves	Void	HP	Rare
Tracker	Orcs	Force	Attack	Uncommon

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
Tracker	60	6	14700 -4620	1134 +165	639 -132	94 -8	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
Tracker	Hooked Arrowheads Formula: 1.9*ATK Attacks 1 enemy 2 times. Each hit has a 10% chance of placing a 2.5% [Poison] debuff for 2 turns. Poison 2.5%	Haughty Dismissal Formula: 6.6*ATK Attacks 1 enemy. Has a 20% chance of placing a 30% [Decrease DEF] debuff for 2 turns. Cooldown: 4 Decrease DEF 30%	-