Treeshield Knott vs Corvis the Corruptor

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Treeshield Knott	Sylvan Watchers	Void	Support	Rare	Speed 15% Place: Crypts
Corvis the Corruptor	The Sacred Order	Magic	Defence	Legendary	Defence 30% Place: All battles

Stats comparison

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Treeshield Knott	60	6	16020	947	1013	101	15	50	30	0
Corvis the Corruptor	60	6	19155 +3135	903 -44	1398 +385	99 -2	15	50	40 +10	20 +20

Skills comparison

Treeshield Knott	Thorned Riposte Formula: 1.4*ATK Attacks 1 enemy 3 times. Each hit has a 20% chance of placing a 25% [Decrease ATK] debuff for 2 turns. Decrease ATK 25%	Treeshield's Favor Formula: 0.15*TRG_HP Heals all allies by 15% of their MAX HP. Also places a 30% [Increase DEF] buff on all allies for 2 turns. Cooldown: 5 Increase DEF 30%	Root Rejuvenation Formula: 0.25TRG_HP Formula: 0.25MAX_STAMINA Revives 2 random allies with 25% HP and 25% Turn Meter. Also places a [Shield] buff on all revived allies for 2 turns, equal to 20% of their MAX HP. Cooldown: 7 Shield	-
Corvis the Corruptor	Reductive Process Formula: 3.1*DEF Attacks 1 enemy. Has a 40% chance of placing a 50% [Decrease ATK] debuff for 2 turns. Decrease ATK 50%	Medical Miracle Formula: 1.9DEF Formula: 1.9DEF Attacks all enemies 2 times. The first hit increases the duration of all enemy debuffs by 1 turn. The second hit increases the duration of all ally buffs by 1 turn. Cooldown: 4	Field Research Formula: 2DEF Formula: 2DEF Attacks all enemies 2 times. Each hit has a 75% chance of placing two 5% [Poison] debuffs for 2 turns. After attacking, places a 25% [Poison Sensitivity] debuff on enemies under 2 or more [Poison] debuffs. Cooldown: 5 Poison Sensitivity Poison 5%	Curious Draught [P] Formula: (EffectsAppliedOnTargetCountOfKind(ContinuousDamage_KindId)<5)(-0.05DMG_MUL)EffectsAppliedOnTargetCountOfKind(ContinuousDamage_KindId)+(EffectsAppliedOnTargetCountOfKind(ContinuousDamage_KindId)>=5)(-0.25*DMG_MUL) Decreases the damage enemies under [Poison] debuffs inflict (5% less damage per [Poison] debuff, stacks up to 25%).