Senna Amberheart vs Yelagirna

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Senna Amberheart	Dwarves	Void	Support	Legendary	Speed 19% Place: All battles
Yelagirna	Orcs	Spirit	Attack	Epic	Attack 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
Yelagirna	60	6	16515 -2475	1365 +253	837 -363	95 -18	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.
Yelagirna	Breath Taker Formula: 2.1*ATK Attacks 1 enemy 2 times. Places a 50% [Increase ATK] buff on this Champion for 2 turns if this attack kills an enemy. Increase ATK 50%	Mortify Formula: 4*ATK Attacks all enemies. Has a 75% chance of placing a 50% [Decrease ATK] debuff for 2 turns. Cooldown: 4 Decrease ATK 50%	Sword of Loss Formula: 6.1*ATK Attacks 1 enemy. Has a 75% chance of placing a [Block Buffs] debuff and a [Block Active Skills] debuff for 2 turns. This attack is always critical. Cooldown: 4 Block Cooldown Skills Block Buffs	Great Cycle [P] Formula: 0.5*TRG_HP Revives 1 random ally with 50% HP every time this Champion kills an enemy. Cooldown: 2