Rotting Mage vs Geargrinder

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Rotting Mage	Undead Hordes	Spirit	Support	Rare	Speed 13% Place: Crypts
Geargrinder	Ogryn Tribes	Void	HP	Rare	HP 25% Place: Crypts

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Rotting Mage	60	6	16350	1068	870	100	15	50	30	15
Geargrinder	60	6	19320 +2970	826 -242	914 +44	95 -5	15	50	40 +10	0 -15

Rotting Mage	Gelid Beam Formula: 4*ATK Attacks 1 enemy. Has a 25% chance of placing a [Freeze] debuff for 1 turn. Freeze	Frost Armaments Places a 25% [Increase ATK] buff on all allies for 2 turns. Places a 30% [Increase DEF] buff on this Champion for 2 turns. Cooldown: 4 Increase ATK 25% Increase DEF 30%	Mental Overload Formula: 4.4*ATK Attacks 1 enemy. Has a 75% chance of placing a [Stun] debuff for 1 turn. Cooldown: 4 Stun
Geargrinder	Gears of Gore Formula: 0.15*HP Attacks 1 enemy. Places a 7.5% [Continuous Heal] buff on this Champion for 1 turn if this attack is critical. Continuous Heal 7.5%	Healing Splatter Formula: 0.15*TRG_HP Heals all allies by 15% of their MAX HP. Cooldown: 5	Necrocogs Formula: 0.5TRG_HP Formula: 0.5MAX_STAMINA Revives a dead ally with 50% HP and 50% Turn Meter. Cooldown: 7