Mithrala Lifebane vs Knave of Hearts

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Mithrala Lifebane	Dark Elves	Void	Support	Legendary	Accuracy 80 Place: All battles
Knave of Hearts	Undead Hordes	Force	HP	Legendary	HP 30% Place: All battles

Stats comparison

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Mithrala Lifebane	60	6	20310	870	1354	109	15	50	30	10
Knave of Hearts	60	6	22470 +2160	892 +22	1189 -165	98 -11	15	50	40 +10	20 +10

Skills comparison

Mithrala Lifebane	Libation of Pain Formula: 2*DEF Attacks 2 times at random. Each hit has an 80% chance of placing a 5% [Poison] debuff for 2 turns. Poison 5%	Sigil of Toxic Glory Formula: 4*DEF Attacks all enemies. Places a [Hex] debuff for 2 turns. Also places a 60% [Increase DEF] buff and a 50% [Increase ATK] buff on all allies for 2 turns. Cooldown: 5 Increase ATK 50% Increase DEF 60% Hex	Brimming Cylix Removes all debuffs from all allies, then places a 25% [Strengthen] buff and a [Shield] buff equal to 30% of this Champion’s MAX HP on all allies for 2 turns. Cooldown: 5 Shield Strengthen	Gaze of Stone [P] Formula: 1*ACC Whenever this Champion is attacked by an enemy under a [Hex] debuff, has a 50% chance of applying a [Petrification] debuff on the attacker for 1 turn. Whenever an ally is attacked by an enemy under a [Hex] debuff, has a 30% chance of applying a [Petrification] debuff on the attacker for 1 turn. Also increases this Champion’s RES. The amount by which it is increased is equal to the amount of ACC this Champion has. Petrification
Knave of Hearts	Thornblade Formula: 0.1HP Formula: 0.03HP Attacks 1 enemy 2 times. Each hit has a 30% chance of placing a [Provoke] debuff for 1 turn. Each hit also heals the ally with the lowest HP by 3% of this Champion’s MAX HP. Provoke	Gallant Knave Formula: 0.24*HP Attacks all enemies. Has a 75% chance of stealing 2 random buffs from each target. Places a 15% [Continuous Heal] buff on all allies except this Champion for 2 turns. Also places an [Unkillable] buff and a [Taunt] buff on this Champion for 2 turns. Cooldown: 4 Taunt Unkillable Continuous Heal 15%	Stout Defense Swaps HP with a target enemy, and places a 100% [Heal Reduction] on that enemy for 2 turns. This debuff cannot be removed, transferred, or have its duration decreased by enemies. Then equalizes the HP levels of all allies. The HP levels of all allies will be brought up to the level of the ally with the highest HP. Also places a 60% [Increase DEF] buff on all allies for 2 turns. Cooldown: 6 Heal Reduction 100% Increase DEF 60%	Eternal Sentinel [P] Formula: TRG_DSTR_HP Formula: 0.2*DEALT_DMG At the start of this Champion’s turn, fully restores this Champion’s destroyed MAX HP. When attacked, destroys the attacker's MAX HP by 20% of the damage received (stacks up to 50%).