Vasal of the Seal vs Nekmo Thaar

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Vasal of the Seal	Demonspawn	Force	HP	Legendary	HP 33% Place: All battles
Nekmo Thaar	Lizardmen	Spirit	Support	Legendary	Speed 19% 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
Nekmo Thaar	60	6	17340 -3975	1233 +363	1189 -99	104 +6	15	50	30 -10	30 +10

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.]
Nekmo Thaar	Steelmelt Acid Formula: 1.8*ATK Attacks all enemies. Has a 40% chance of placing a 50% [Decrease ATK] debuff for 2 turns. The chance increases to 75% against targets under debuffs. Decrease ATK 50%	Planar Chains Formula: 3.1*ATK Attacks all enemies. Has a 75% chance of placing a 30% [Decrease SPD] debuff and a [Leech] debuff for 2 turns. Cooldown: 4 Leech Decrease SPD 30%	Speed Weirding Formula: 0.3*MAX_STAMINA Places a 30% [Increase SPD] buff on all allies for 2 turns and fills their Turn Meters by 30%, then grants this Champion an Extra Turn. Cooldown: 6 Increase SPD 30%	Rune of Haste [P] Formula: 0.05*MAX_STAMINA Fills this Champion's Turn Meter by 5% each time a debuff on an enemy is removed, transferred, or expires.