Phranox vs Gravechill Killer

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Phranox	Knight Revenant	Spirit	Attack	Epic	-
Gravechill Killer	Undead Hordes	Magic	Attack	Rare	-

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Phranox	60	6	14370	1409	936	97	15	60	30	0
Gravechill Killer	60	6	13545 -825	1233 -176	892 -44	96 -1	15	50 -10	30	10 +10

Phranox	Carve Through Formula: 3.4*ATK Attacks 1 enemy. Has a 40% chance of placing a 50% [Decrease ATK] debuff for 2 turns. Decrease ATK 50%	Tender Mercies Formula: ((TRG_BUFF_COUNT>0)(4.6ATK))+((TRG_BUFF_COUNT==0)(9.2ATK)) Attacks 1 enemy. Inflicts 100% more damage against targets without any buffs. Cooldown: 3	Isolate Formula: 1.8*ATK Attacks 1 enemy 3 times. Each hit has a 50% chance of stealing 1 random buff from the target. Places a [Block Buffs] debuff for 2 turns if the target has no buffs after this attack. Cooldown: 5 Block Buffs
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%