Bloodfeather vs Gravechill Killer

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Bloodfeather	Orcs	Force	Attack	Epic	Crit rate 20% Place: Crypts
Gravechill Killer	Undead Hordes	Magic	Attack	Rare	-

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Bloodfeather	60	6	13875	1542	837	102	15	60	30	0
Gravechill Killer	60	6	13545 -330	1233 -309	892 +55	96 -6	15	50 -10	30	10 +10

Bloodfeather	Hunt Down Formula: 3.8*ATK Attacks 1 enemy. Has an extra 30% chance of inflicting a critical hit.	Armor Breaker Formula: 5.3*ATK Places a 60% [Decrease DEF] debuff for 2 turns, then attacks 1 enemy. Has an extra 30% chance of inflicting a critical hit. Cooldown: 5 Decrease DEF 60%	Charged Shot Formula: 6.1ATK Formula: 0.5TRG_STAMINA Attacks 1 enemy. Places a 30% [Decrease SPD] debuff for 2 turns. Decreases the target's Turn Meter by 50%. Has an extra 30% chance of inflicting a critical hit. Cooldown: 4 Decrease SPD 30%
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%