Mithrala Lifebane vs Celendiel the Opal Guardian

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Mithrala Lifebane	Dark Elves	Void	Support	Legendary	Accuracy 80 Place: All battles
Celendiel the Opal Guardian	High Elves	Void	Defence	Legendary	Defence 33% Place: All battles

Stats comparison

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Mithrala Lifebane	60	6	20310	870	1354	109	15	50	30	10
Celendiel the Opal Guardian	60	6	17670 -2640	782 -88	1619 +265	98 -11	15	63 +13	40 +10	0 -10

Skills comparison

Mithrala Lifebane	Libation of Pain Formula: 2*DEF Attacks 2 times at random. Each hit has an 80% chance of placing a 5% [Poison] debuff for 2 turns. Poison 5%	Sigil of Toxic Glory Formula: 4*DEF Attacks all enemies. Places a [Hex] debuff for 2 turns. Also places a 60% [Increase DEF] buff and a 50% [Increase ATK] buff on all allies for 2 turns. Cooldown: 5 Increase ATK 50% Increase DEF 60% Hex	Brimming Cylix Removes all debuffs from all allies, then places a 25% [Strengthen] buff and a [Shield] buff equal to 30% of this Champion’s MAX HP on all allies for 2 turns. Cooldown: 5 Shield Strengthen	Gaze of Stone [P] Formula: 1*ACC Whenever this Champion is attacked by an enemy under a [Hex] debuff, has a 50% chance of applying a [Petrification] debuff on the attacker for 1 turn. Whenever an ally is attacked by an enemy under a [Hex] debuff, has a 30% chance of applying a [Petrification] debuff on the attacker for 1 turn. Also increases this Champion’s RES. The amount by which it is increased is equal to the amount of ACC this Champion has. Petrification
Celendiel the Opal Guardian	Opal Thrust Formula: 3DEF Formula: 3DEF Attacks 1 enemy. When counterattacking, will repeat this attack against a random enemy. Has a 50% chance of placing a [Stun] debuff for 1 turn. This debuff cannot be resisted. Stun	Agent Of Light Formula: 4.1*DEF Formula: -0.25 Attacks 1 enemy. Before attacking, places a 60% [Increase DEF] buff on all allies for 2 turns, and a 15% [Shatter] buff on this Champion for 2 turns. Will ignore 25% of the target's DEF, as well as [Unkillable] and [Block Damage] buffs. Will ignore 50% of the target's DEF instead, if the target is under any [Increase DEF] or [Strengthen] buffs, [Decrease DEF], [Stun], [Fear] or [True Fear] debuffs. Cooldown: 5 Shatter Increase DEF 60%	Eternal Defender Formula: 3.4DEF Formula: DMG_MUL((0.05REL_TRG_BUFF_COUNT)+(0.05REL_TRG_DEBUFF_COUNT)) Formula: 3.4DEF Formula: DMG_MUL((0.05REL_TRG_BUFF_COUNT)+(0.05REL_TRG_DEBUFF_COUNT)) Attacks all enemies. Places an extra hit on enemies under any [Increase DEF], [Decrease DEF], [Strengthen], [Stun], [Fear] or [True Fear] debuffs. Will ignore any [Increase DEF] and [Strengthen] buffs. Increases the damage each enemy receives by 5% for each buff and debuff on them. (Stacks up to 100%). Places an [Unkillable] buff on all allies for 1 turn, and a [Counterattack] buff on all allies for 2 turns. Cooldown: 6 Unkillable Counterattack	Glittering Guardian [P] [Passive Effect] This Champion is immune to [Decrease DEF], [Fear], [True Fear] and [Stun] debuffs. [Active Effect] Activates this Champion’s Agent Of Light skill whenever an enemy tries to place a [Decrease DEF], [Fear], [True Fear] or [Stun] debuff on this Champion. Does not set the Agent Of Light skill on cooldown. Cooldown: 1