Sepulcher Sentinel vs Thylessia

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Sepulcher Sentinel	Knight Revenant	Force	Defence	Epic	Defence 25% Place: All battles
Thylessia	Knight Revenant	Force	Attack	Epic	-

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
Thylessia	60	6	12720 -3465	1454 +551	1002 -319	97 -1	15	60 +10	30 -15	0

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	-
Thylessia	Weft of Madness Formula: 3.5*ATK Attacks 1 enemy. Has a 50% chance of applying a [Debuff Spread] effect, taking 1 random debuff from the target and placing it on all enemies under [Hex] debuffs.	Shrieking Voices Formula: 3.7*ATK Attacks all enemies. Increases the duration of all debuffs on all enemies by 1 turn. Cooldown: 3	Melancholia Formula: 3.7*ATK Attacks all enemies. Places a 60% [Decrease DEF] debuff for 2 turns. Cooldown: 4 Decrease DEF 60%	Feast of Woe [P] When attacking enemies under [Decrease DEF] debuffs, has a 50% chance of placing a [Hex] debuff on them for 2 turns. Hex