Rakka Viletide vs Mistress of Hymns

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Rakka Viletide	Orcs	Void	Support	Legendary	Speed 19% Place: All battles
Mistress of Hymns	The Sacred Order	Spirit	Support	Epic	Defence 25% Place: All battles

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Rakka Viletide	60	6	19650	1134	1134	109	15	50	40	0
Mistress of Hymns	60	6	18990 -660	1024 -110	1013 -121	103 -6	15	50	30 -10	0

Rakka Viletide	Oozing Blessing Removes all debuffs from all allies, then places a 50% [Increase ATK] buff and a [Shield] buff equal to 25% of this Champion’s MAX HP on all allies for 2 turns. Cooldown: 4 Shield Increase ATK 50%	-	-
Mistress of Hymns	Bolstering Blow Formula: 4ATK Formula: 0.15DEALT_DMG Attacks 1 enemy. Heals the ally with the lowest HP by 15% of the damage inflicted.	Song of Triumph Formula: 5.7*ATK Attacks 1 enemy. Places a 15% [Continuous Heal] buff on the 2 allies with the lowest HP for 2 turns if this attack is critical. Cooldown: 4 Continuous Heal 15%	Hymn of Rebirth Formula: 0.5*TRG_HP Revives 2 random allies with 50% HP and places a [Veil] buff on them for 1 turn. Cooldown: 6 Veil