Mausoleum Mage vs Gravechill Killer

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Mausoleum Mage	Undead Hordes	Force	Support	Epic	-
Gravechill Killer	Undead Hordes	Magic	Attack	Rare	-

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Mausoleum Mage	60	6	19485	1057	947	104	15	50	30	0
Gravechill Killer	60	6	13545 -5940	1233 +176	892 -55	96 -8	15	50	30	10 +10

Mausoleum Mage	Soul Manacles Formula: 4.6*ATK Attacks 1 enemy. Has a 30% chance of placing a 30% [Decrease SPD] debuff for 2 turns. Decrease SPD 30%	Might of Undeath Places a 30% [Increase C. RATE] buff and a 60% [Increase DEF] on all allies for 2 turns. Also places a [Block Debuffs] buff on all allies for 1 turn. Cooldown: 4 Block Debuffs Increase DEF 60% Increase C. RATE 30%	Winds of Purging Formula: 0.1HP Formula: 0.1HP Formula: 0.15*MAX_STAMINA Removes all debuffs from all allies, then heals all allies by 10% of this Champion's MAX HP. Heals each ally by a further 10% if 1 or more debuffs are removed from that ally. Fills each ally’s Turn Meter by 15% if 2 or more debuffs are removed from that ally. Cooldown: 5
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%