Bonekeeper vs Vasal of the Seal

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Bonekeeper	Orcs	Force	Attack	Epic	-
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
Bonekeeper	60	6	13545	1531	870	98	15	60	30	0
Vasal of the Seal	60	6	21315 +7770	870 -661	1288 +418	98	15	50 -10	40 +10	20 +20

Skills comparison

Bonekeeper	Batter Formula: 3.3*ATK Attacks 1 enemy. Has a 50% chance of placing a 60% [Decrease DEF] debuff for 2 turns if this attack is critical. Decrease DEF 60%	Precision Strike Formula: 5ATK Formula: DMG_MUL0.5 Attacks 1 enemy. This attack deals 50% extra C. DMG. Cooldown: 4	Killing Haze Formula: 5.3ATK Formula: 5.3ATK Formula: 0.15*MAX_STAMINA Attacks 1 enemy. Places an extra hit if this attack is critical. Fills the Turn Meters of all allies by 15% if this attack kills an enemy. Cooldown: 5	-
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.]