Rotos the Lost Groom vs Vasal of the Seal

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Rotos the Lost Groom	Undead Hordes	Magic	Attack	Legendary	-
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
Rotos the Lost Groom	60	6	11895	1520	1266	90	15	63	40	0
Vasal of the Seal	60	6	21315 +9420	870 -650	1288 +22	98 +8	15	50 -13	40	20 +20

Skills comparison

Rotos the Lost Groom	Terror Scourge Formula: 1.9ATK+0.19HP Attacks 1 enemy. Has a 75% chance of placing a 60% [Decrease DEF] debuff for 2 turns. Also has a 25% chance of granting an Extra Turn. Decrease DEF 60%	Vitality Plunder Formula: 3.5ATK+0.3HP Formula: 0.2TRG_B_HP Formula: destroyedHpBySkillCurrentRound+hitsOnBossBySkillCurrentRoundCount15000 Formula: 0.3*DEALT_DMG Attacks 1 enemy. Destroys the target's MAX HP by 20%, then adds that HP to this Champion's own MAX HP. [Cannot destroy a single Champion's MAX HP by more than 60% in one Battle. Cannot increase this Champion's MAX HP by more than 60,000. Destroys the MAX HP of Bosses by 30% of the damage inflicted instead. This Champion's MAX HP will be increased by 15,000 when this Skill is used against Bosses.] Cooldown: 3	Fated Destruction Formula: 2.1ATK+0.19HP Attacks 1 enemy. Will ignore 60% of the target's DEF. Will also ignore [Unkillable] and [Block Damage] buffs. Enemies killed by this skill cannot be revived if this Champion has gained maximum amount of HP from the Vitality Plunder skill. Grants an Extra Turn if this skill kills an enemy. Cooldown: 4 Block Revive	Spurn Oblivion [P] Formula: -(DEALT_DMG-0.5HP) Formula: -0.15DMG_MUL Formula: -0.3*DMG_MUL Will decrease damage from enemy hits so that incoming damage from any single hit will not exceed 50% of this Сhampion's MAX HP. Grants an Extra Turn if this damage reduction occurs. [Does not work against Bosses.] Decreases the damage taken from Bosses by 15%. Decreases the damage taken from Bosses by 30% if Siphi the Lost Bride is on the same team.
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.]