Sepulcher Sentinel vs Ursala the Mourner

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Sepulcher Sentinel	Knight Revenant	Force	Defence	Epic	Defence 25% Place: All battles
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
Sepulcher Sentinel	60	6	16185	903	1321	98	15	50	45	0
Ursala the Mourner	60	6	18000 +1815	1167 +264	936 -385	102 +4	15	50	30 -15	15 +15

Sepulcher Sentinel	Sword of Withering Formula: 3.3*DEF Attacks 1 enemy. Has a 40% chance of placing a 50% [Decrease ATK] debuff for 2 turns. Decrease ATK 50%	Sepulcher Shield Places a 60% [Increase DEF] buff and a [Block Debuffs] buff on all allies for 2 turns. Cooldown: 5 Block Debuffs Increase DEF 60%	Untouched By Death [P] Formula: -1*DMG_MUL Has a 25% chance of completely blocking incoming damage when an ally is attacked. Occurs once per turn. Will only block damage for the targeted ally if multiple allies are attacked at the same time. Cooldown: 1
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%