Ripper vs Vasal of the Seal

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Ripper	Skinwalkers	Force	Attack	Epic	Crit rate 19% Place: All battles Element: Force
Vasal of the Seal	Demonspawn	Force	HP	Legendary	HP 33% Place: All battles

Stats comparison

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Ripper	60	6	16020	1299	936	96	15	60	30	0
Vasal of the Seal	60	6	21315 +5295	870 -429	1288 +352	98 +2	15	50 -10	40 +10	20 +20

Skills comparison

Ripper	Scar for Life Formula: 4ATK Formula: 0.3DEALT_DMG Attacks 1 enemy. Destroys their MAX HP by 30% of the damage inflicted.	No Quarter Formula: 3ATK+(1.5ATK*(1-TRG_HP_PERC)) Attacks 1 enemy 2 times. Damage increases as the target's HP decreases. Cooldown: 4	Heavy Slam Formula: 3.3ATK Formula: -0.5 Formula: 0.4DEALT_DMG Attacks 1 enemy. Will ignore 50% of the target's DEF. Destroys their MAX HP by 40% of the damage inflicted. Cooldown: 4	-
Vasal of the Seal	Abyssal Seal Formula: 0.25*HP Attacks 1 enemy. Places a [HP Burn] debuff on the target for 2 turns if they are under a [True Fear] debuff or a [Decrease ATK] debuff. Also places a [Shield] buff on this Champion for 2 turns equal to 10% of their MAX HP. Shield HP Burn	Infernal Darkness Formula: 0.27*HP Attacks all enemies. Has a 75% chance of placing a [True Fear] debuff and a 50% [Decrease ATK] debuff for 2 turns. Cooldown: 5 True Fear Decrease ATK 50%	Daemon Possession Balances the HP of all allies. The HP levels of all allies will be brought up to the level of the ally with the highest HP. After balancing HP, grants an Extra Turn. Cooldown: 6	Legion of Doom [P] Formula: -0.2DMG_MUL Formula: 0.2DMG_MUL Receives 20% less damage from Champions from the Banner Lord, High Elf, and Sacred Order Factions. If there are 2 or more Demonspawn Champions on the team alongside this Champion, increases the C. DMG of all Demonspawn Champions on the team by 20%. [C. DMG increase only works when this Champion is alive.]