Vasal of the Seal vs Vildrax

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Vasal of the Seal	Demonspawn	Force	HP	Legendary	HP 33% Place: All battles
Vildrax	Demonspawn	Magic	Support	Epic	Accuracy 40 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
Vildrax	60	6	19650 -1665	738 -132	1255 -33	97 -1	15	50	30 -10	15 -5

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.]
Vildrax	Verminous Grasp Formula: 2.3*ATK Attacks 1 enemy 2 times. Each hit has a 30% chance of placing a [Leech] debuff for 2 turns. Leech	Duke of Flies Formula: 5*ATK Attacks all enemies. Has a 75% chance of placing a [Hex] debuff for 2 turns. Cooldown: 3 Hex	Swarm of Horrors Formula: 4.5*ATK Attacks all enemies. Has an 80% chance of increasing the duration of all enemy debuffs by 1 turn. When hitting enemies under [Hex] debuffs, also has a 60% chance of putting one of their skills on cooldown. Cooldown: 5	Pestiferous [P] Has a 10% chance of stealing the heal each time an enemy under a [Hex] debuff is about to be healed. [Does not work against Bosses. The amount healed will be the same as it would have been on the original target of the heal, except if the heal is based on the target's HP, in which it will scale off [Vildrax]'s HP.]