Relickeeper vs Gravechill Killer

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Relickeeper	The Sacred Order	Force	Attack	Epic	Attack 40% Place: Campaign
Gravechill Killer	Undead Hordes	Magic	Attack	Rare	-

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Relickeeper	60	6	14370	1365	980	90	15	60	30	0
Gravechill Killer	60	6	13545 -825	1233 -132	892 -88	96 +6	15	50 -10	30	10 +10

Relickeeper	Crusade Formula: 3.75*ATK Attacks 1 enemy. Grants an Extra Turn if the target is killed.	Surging Strength Places a 50% [Increase ATK] buff on this Champion for 4 turns. Grants an Extra Turn. Cooldown: 6 Increase ATK 50%	Ageless Endurance [P] When hit by an enemy, places a 15% [Continuous Heal] buff on this Champion for 2 turns. Cooldown: 5 Continuous Heal 15%
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%