Urticata vs Gravechill Killer

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Urticata	Demonspawn	Spirit	Attack	Epic	Speed 15% Place: All battles
Gravechill Killer	Undead Hordes	Magic	Attack	Rare	-

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Urticata	60	6	12555	1409	1057	97	15	50	30	15
Gravechill Killer	60	6	13545 +990	1233 -176	892 -165	96 -1	15	50	30	10 -5

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%
Gravechill Killer	Freezing Toxin Formula: 3.9*ATK Attacks 1 enemy. Has a 40% chance of placing a 5% [Poison] debuff for 1 turn. Poison 5%	Blood Chill Formula: 6.8*ATK Attacks 1 enemy. Has a 75% chance of placing a 30% [Decrease DEF] debuff for 2 turns. Has a 75% chance of placing a 60% [Decrease DEF] debuff instead if the target is under a [Poison] debuff. Cooldown: 4 Decrease DEF 60% Decrease DEF 30%	Icy Veins Formula: 2.65*ATK Attacks 1 enemy 2 times.Each hit places a 2.5% [Poison] debuff for 2 turns. Places a 5% [Poison] debuff instead if the target is under a [Poison Sensitivity] debuff. Cooldown: 5 Poison 2.5% Poison 5%	-