Tracker vs Pain Keeper

Overall comparison

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

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Tracker	60	6	14700	1134	639	94	15	50	30	0
Pain Keeper	60	6	19320 +4620	969 -165	771 +132	102 +8	15	50	40 +10	0

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%	-
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