Vasal of the Seal vs Supreme Elhain

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Vasal of the Seal	Demonspawn	Force	HP	Legendary	HP 33% Place: All battles
Supreme Elhain	High Elves	Void	Attack	Legendary	Attack 30% Place: All battles

Stats comparison

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Vasal of the Seal	60	6	21315	870	1288	98	15	50	40	20
Supreme Elhain	60	6	13875 -7440	1509 +639	1145 -143	102 +4	15	63 +13	40	0 -20

Skills comparison

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.]
Supreme Elhain	Exemplar of Strikes Formula: 2*ATK Attacks 1 enemy 2 times. Each hit transfers a random debuff from this Champion to the target.	Let None Live Formula: 4ATK(1+0.1*TRG_DEBUFF_COUNT) Attacks all enemies. Damage increases by 10% for each debuff on each target. Resets the cooldown of the [Crack Shot] skill if this attack kills an enemy. Cooldown: 4	Crack Shot Formula: 6*ATK Attacks 1 enemy. Will ignore [Ally Protection], [Strengthen], and [Shield] buffs. Grants an Extra Turn if this attack kills an enemy. Cooldown: 6	Implacable [P] Formula: 0.2*DMG_MUL Immune to [Decrease ATK] debuffs. Inflicts 20% more damage against targets whose ATK is lower than this Champion’s ATK.