Wurlim Frostking vs Thylessia

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Wurlim Frostking	Knight Revenant	Void	Defence	Legendary	Defence 33% Place: All battles
Thylessia	Knight Revenant	Force	Attack	Epic	-

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Wurlim Frostking	60	6	19650	1035	1233	100	15	50	30	20
Thylessia	60	6	12720 -6930	1454 +419	1002 -231	97 -3	15	60 +10	30	0 -20

Wurlim Frostking	Winds of Winter Formula: 4*DEF Attacks 1 enemy. Has a 30% chance of placing a [Freeze] debuff for 1 turn. This debuff cannot be resisted. Places a [Perfect Veil] buff on the ally with the lowest HP for 2 turns. Perfect Veil Veil Freeze	Frostbite Blast Formula: 4*DEF Attacks all enemies. Has a 70% chance of placing a 50% [Decrease ATK] debuff and a 50% [Decrease ACC] debuff for 2 turns. These debuffs cannot be resisted. Also places a 30% [Increase C. DMG] buff on all allies for 2 turns. Cooldown: 4 Decrease C. DMG Decrease ACC 50% Decrease ATK 50% Increase C. DMG	Icegrave Armor Places a 25% [Strengthen] buff and a 60% [Increase DEF] buff on all allies for 2 turns. Has a 60% chance of placing a [Freeze] debuff on all enemies for 1 turn. This debuff cannot be resisted. Cooldown: 5 Freeze Strengthen Increase DEF 60%	-
Thylessia	Weft of Madness Formula: 3.5*ATK Attacks 1 enemy. Has a 50% chance of applying a [Debuff Spread] effect, taking 1 random debuff from the target and placing it on all enemies under [Hex] debuffs.	Shrieking Voices Formula: 3.7*ATK Attacks all enemies. Increases the duration of all debuffs on all enemies by 1 turn. Cooldown: 3	Melancholia Formula: 3.7*ATK Attacks all enemies. Places a 60% [Decrease DEF] debuff for 2 turns. Cooldown: 4 Decrease DEF 60%	Feast of Woe [P] When attacking enemies under [Decrease DEF] debuffs, has a 50% chance of placing a [Hex] debuff on them for 2 turns. Hex