Heartpiercer vs Bergoth the Malformed

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Heartpiercer	Dark Elves	Force	Attack	Uncommon	-
Bergoth the Malformed	Knight Revenant	Spirit	HP	Epic	-

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Heartpiercer	60	6	12555	1057	859	89	15	50	30	0
Bergoth the Malformed	60	6	21810 +9255	716 -341	1134 +275	95 +6	15	50	45 +15	0

Heartpiercer	Perforate Formula: 4.6*ATK Attacks 1 enemy.	Sight In Formula: 7.6*ATK Attacks 1 enemy. If the hit is critical, places a 25% [Increase ATK] buff on this Champion for 2 turns. Cooldown: 4 Increase ATK 25%	-
Bergoth the Malformed	Nightmare Juggernaut Formula: 0.2*HP Attacks 1 enemy. Has a 50% chance of placing a 15% [Continuous Heal] buff on this Champion for 1 turn if this attack is critical. Continuous Heal 15%	Chemical Stench Formula: 0.2*HP Attacks all enemies. Has a 30% chance of placing a [Provoke] debuff for 2 turns. Cooldown: 5 Provoke	Canister [P] Formula: 0.2*DEALT_DMG Whenever this Champion is attacked, heals all allies except this Champion by 20% of the damage received.