Warcaster vs Ursala the Mourner

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Warcaster	Banner Lords	Void	Support	Epic	Crit rate 23% Place: All battles Element: Void
Ursala the Mourner	Banner Lords	Void	Support	Epic	Speed 24% Place: Doom tower

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Warcaster	60	6	20145	1013	947	106	15	50	30	0
Ursala the Mourner	60	6	18000 -2145	1167 +154	936 -11	102 -4	15	50	30	15 +15

Warcaster	Tactical Ace Formula: 4.3*ATK Attacks 1 enemy. Has a 40% chance of stealing 2 random buffs from the target.	Sealing Strike Formula: 4.2*ATK Attacks all enemies. Has a 50% chance of placing a [Block Buffs] debuff for 2 turns. Cooldown: 4 Block Buffs	Invincible Aura Places a [Block Damage] buff on all allies for 1 turn. Cooldown: 6 Block Damage
Ursala the Mourner	Lance of Penitence Formula: 3.4ATK Formula: 0.1MAX_STAMINA Attacks 1 enemy. Has a 40% chance of decreasing the target's Turn Meter by 10%.	Waves of Grief Formula: 3.2*ATK Attacks all enemies. Has a 75% chance of placing a 50% [Decrease ATK] debuff for 2 turns. Also places a 50% [Increase ATK] buff on all allies for 2 turns. Cooldown: 4 Increase ATK 50% Decrease ATK 50%	Requiem Formula: 0.75TRG_HP Formula: 0.5MAX_STAMINA Revives all dead allies with 75% HP, then fills their Turn Meters by 50%. Also places a 60% [Increase DEF] buff and a 25% [Strengthen] buff on all allies for 3 turns. Cooldown: 6 Strengthen Increase DEF 60%