Urticata vs Sepulcher Sentinel

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Urticata	Demonspawn	Spirit	Attack	Epic	Speed 15% Place: All battles
Sepulcher Sentinel	Knight Revenant	Force	Defence	Epic	Defence 25% Place: All battles

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Urticata	60	6	12555	1409	1057	97	15	50	30	15
Sepulcher Sentinel	60	6	16185 +3630	903 -506	1321 +264	98 +1	15	50	45 +15	0 -15

Urticata	Mephitic Spines Formula: 1.6*ATK Attacks 1 enemy 2 times. Each hit has a 30% chance of increasing the duration of 2 [Poison] debuffs by 1 turn.	Poison Agonist Formula: 1.8*ATK Attacks 1 enemy 3 times. Each hit has a 30% chance of placing a 25% [Poison Sensitivity] debuff for 2 turns. Cooldown: 3 Poison Sensitivity	Wretched Nexus Formula: 1.7*ATK Attacks 4 times at random. Each hit has a 50% chance of placing a [Hex] debuff for 2 turns. Cooldown: 4 Hex	Blood Borne [P] Whenever either this Champion or an ally lands a critical hit on an enemy under a [Hex] debuff, has a 10% chance of placing a 5% [Poison] debuff on the enemy for 1 turn. Poison 5%
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	-