Mithrala Lifebane vs Niamhe, Spear of Nyresa

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Mithrala Lifebane	Dark Elves	Void	Support	Legendary	Accuracy 80 Place: All battles
Niamhe, Spear of Nyresa	Sylvan Watchers	Void	Defence	Legendary	Defence 35% 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
Niamhe, Spear of Nyresa	60	6	18990 -1320	782 -88	1531 +177	98 -11	15	50	50 +20	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
Niamhe, Spear of Nyresa	Woodspear Formula: 4.1*DEF Attacks 1 enemy. Places a 50% [Decrease ATK] debuff and a 30% [Decrease C. RATE] debuff on the target for 2 turns. Has a 50% chance that these debuffs cannot be resisted or blocked. Decrease C. RATE Decrease ATK 50%	Cerulean Guard Formula: 5.4DEF Formula: 5.4DEF Attacks 1 enemy. If the target has 50% HP or less, this attack is always critical and will ignore 50% of the target’s DEF. Places a [Shield] buff on all allies for 2 turns. The value of the [Shield] is equal to the difference between the target's current HP and the target's MAX HP. If target is a Boss, the value of the [Shield] is proportional to this Champion’s DEF instead. If the target is killed, also reduces the cooldowns of all ally skills by 2 turns. Cooldown: 5 Shield	Jeweled Leaf Formula: 4*DEF Heals all allies. The value of the heal is proportional to this Champion’s DEF. Also places a [Block Debuffs] buff and a 50% [Ally Protection] buff on all allies for 2 turns. Cooldown: 4 Block Debuffs Ally Protection 50%	Shield-Mistress [P] Places a [Block Damage] buff on all allies for 1 turn at the start of the Round, and each time this Champion’s HP drops below 50%. If there are multiple Champions on the team with this skill, only one will activate. This skill will not activate on duplicate copies of this Champion, if this particular Champion is dead. Block Damage