Grandmaster vs Gravechill Killer

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Grandmaster	Banner Lords	Magic	HP	Rare	HP 17% Place: All battles Element: Magic
Gravechill Killer	Undead Hordes	Magic	Attack	Rare	-

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Grandmaster	60	6	16185	892	1057	100	15	50	40	0
Gravechill Killer	60	6	13545 -2640	1233 +341	892 -165	96 -4	15	50	30 -10	10 +10

Grandmaster	Hammerblows Formula: 1.5*ATK Attacks 1 enemy 3 times.	Steel Crusher Formula: 7.5*ATK Attacks 1 enemy. Has a 40% chance of placing a 25% [Decrease ATK] debuff on the target for 2 turns. Cooldown: 4 Decrease ATK 25%	Demoralizing Display Formula: 7.4*ATK Attacks 1 enemy. Has a 50% chance of placing a [Provoke] debuff on the target for 1 turn. Cooldown: 4 Provoke
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%