Siphi the Lost Bride vs Yelagirna

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Siphi the Lost Bride	Undead Hordes	Void	Support	Legendary	Resist 80 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
Siphi the Lost Bride	60	6	21480	859	1288	114	15	50	40	0
Yelagirna	60	6	16515 -4965	1365 +506	837 -451	95 -19	15	50	30 -10	15 +15

Skills comparison

Siphi the Lost Bride	Curse of Longing Formula: 5ATK Formula: 0.05TRG_HP Attacks 1 enemy. Has an 80% chance of placing a [Sleep] debuff for 1 turn if the target’s Turn Meter is equal to or above 50%. This debuff cannot be resisted. Heals all allies by 5% of their MAX HP if the target’s Turn Meter is below 50%. Sleep	Whirlwind Romance Formula: 0.1*MAX_STAMINA Places a [Block Debuffs] buff on all allies for 2 turns, then fills the Turn Meters of all allies by 10% and places a 60% [Increase DEF] buff and a 30% [Increase SPD] buff on all allies for 2 turns. Cooldown: 6 Block Debuffs Increase DEF 60% Increase SPD 30%	Love Beyond Death Formula: 0.55*TRG_HP Formula: MAX_STAMINA Revives a single ally with 55% HP and a full Turn Meter. Places a 50% [Increase ATK] buff and a 30% [Increase C. RATE] buff on that ally for 2 turns. Cooldown: 6 Increase ATK 50% Increase C. RATE 30%	Eternal Bond [P] Formula: 0.1*TRG_HP Heals each ally by 10% of their MAX HP at the start of their turn. Has a 40% chance of removing any [Freeze], [Fear] and [True Fear] debuffs from each ally at the start of their turn. Removes all debuffs from Rotos the Lost Groom at the start of their turn if they are on the same team.
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