Senna Amberheart vs Grunch Killjoy

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Senna Amberheart	Dwarves	Void	Support	Legendary	Speed 19% Place: All battles
Grunch Killjoy	Ogryn Tribes	Force	Support	Epic	Defence 30% Place: Crypts

Stats comparison

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Senna Amberheart	60	6	18990	1112	1200	113	15	50	40	0
Grunch Killjoy	60	6	18000 -990	969 -143	1134 -66	102 -11	15	50	30 -10	15 +15

Skills comparison

Senna Amberheart	Amberthrust Formula: 4.3*ATK Attacks 1 enemy. Has a 50% chance to instantly activate a [Continuous Heal] buff on each ally.	Touch of Gold Formula: 0.2*MAX_STAMINA Places a 30% [Increase SPD] buff and two 15% [Continuous Heal] buffs on all allies for 2 turns. Also fills the Turn Meters of all allies by 20%. Cooldown: 5 Continuous Heal 15% Increase SPD 30%	Edge of Death Formula: 0.5TRG_HP Formula: 0.5MAX_STAMINA Revives all dead allies with 50% HP and 50% Turn Meter. Then, teams up with all allies revived by this skill to attack the enemy with the lowest HP. The allies joining the attack will use their default skills. Cooldown: 6	Healing Glow [P] Formula: 0.05*MAX_STAMINA Whenever a [Continuous Heal] buff activates on any ally, fills the Turn Meters of all allies by 5%. At the end of this Champion’s turn, increases the duration of a [Continuous Heal] buff on a random ally except this Champion for 1 turn.
Grunch Killjoy	Mace of Foulness Formula: 3.6*ATK Attacks 1 enemy. Has a 40% chance of placing a [Block Buffs] debuff for 1 turn. Block Buffs	Kindle Soulfire Formula: 4.2*ATK Attacks all enemies. Has a 50% chance of placing a [Bomb] debuff that detonates after 1 turn. Cooldown: 5 Bomb	Hex Eater Formula: REL_TRG_DEBUFF_COUNT-1 Removes all debuffs from all allies, then places one 15% [Continuous Heal] buff for 1 turn on each ally for every debuff removed from them. Cooldown: 6 Continuous Heal 15%	Madcap [P] Formula: 0.1*MAX_STAMINA Fills the Turn Meters of all allies by 10% whenever a [Bomb] debuff detonates on an enemy.