Bogwalker vs Gravechill Killer

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Bogwalker	Lizardmen	Force	Defence	Rare	HP 25% Place: Dungeons
Gravechill Killer	Undead Hordes	Magic	Attack	Rare	-

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Bogwalker	60	6	16020	848	1112	93	15	50	40	0
Gravechill Killer	60	6	13545 -2475	1233 +385	892 -220	96 +3	15	50	30 -10	10 +10

Bogwalker	Bone Katars Formula: 3.8*DEF Attacks 1 enemy. Has a 30% chance of placing a 50% [Decrease ATK] debuff for 2 turns. Decrease ATK 50%	Combo Attack Formula: 2ATK+2.3DEF Attacks all enemies. Places a 30% [Increase DEF] buff on all allies for 2 turns. Cooldown: 5 Increase DEF 30%	Scout [P] Places a 30% [Reflect Damage] buff on all allies for 1 turn when attacked with a critical hit. Cooldown: 4 Reflect Damage 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%