Sunken Sentinel vs White Dryad Nia

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Sunken Sentinel	Argonites	Void	Attack	Rare	Attack 15% Place: All battles
White Dryad Nia	Sylvan Watchers	Void	Defence	Epic	-

Stats comparison

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Sunken Sentinel	60	6	12390	1277	925	95	15	57	30	0
White Dryad Nia	60	6	20145 +7755	683 -594	1277 +352	98 +3	15	50 -7	45 +15	0

Skills comparison

Sunken Sentinel	Restorative Slash Formula: 3.7ATK Formula: 3.7ATK Attacks 1 enemy. Places an extra hit if the target is under a [Decrease DEF] debuff.	Sunken Swords Formula: 3.9ATK Formula: (relationChance+0.05aliveAlliesCount)/relationChance Attacks all enemies. Has a 50% chance of placing a 60% [Decrease DEF] debuff for 2 turns. The chance increases by 5% for each alive ally. Cooldown: 5 Decrease DEF 60%	Defender of Agaris Formula: 6ATK Formula: 0.2DEALT_DMG Formula: 0.3DEALT_DMG Formula: 0.2DEALT_DMG Formula: 0.3*DEALT_DMG Attacks 1 enemy. Heals this Champion by 20% of the damage inflicted. Heals this Champion by 30% instead if the target is under a [Decrease DEF] debuff. Destroys the target's MAX HP by 20% of the damage inflicted. Destroys the target's MAX HP by 30% instead if the target is under a [Decrease DEF] debuff. Cooldown: 4	-
White Dryad Nia	Strangling Plants Formula: 2.5*DEF Attacks all enemies. Has a 30% chance of placing a 30% [Decrease SPD] debuff for 2 turns. Decrease SPD 30%	Riotous Revival Formula: 0.4*TRG_HP Removes all debuffs from a target ally, then heals them by 40% of their MAX HP. If the target of this skill is not this Champion, decreases the cooldown of all of the target’s skills by 2 turns. Cooldown: 4	Bark Flesh Places a 50% [Ally Protection] buff on all allies except this Champion for 2 turns. Also places a 15% [Strengthen] buff on all allies for 2 turns. Cooldown: 6 Ally Protection 50% Strengthen	Broad Roots [P] Formula: 0.2DEALT_HEAL+(0.2EXCESSIVE_HEAL) Whenever this Champion is healed, heals each ally except this Champion by 20% of that heal.