Wyvernbane vs Vasal of the Seal

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Wyvernbane	Orcs	Spirit	Attack	Rare	-
Vasal of the Seal	Demonspawn	Force	HP	Legendary	HP 33% Place: All battles

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Wyvernbane	60	6	12555	1288	903	94	15	57	30	0
Vasal of the Seal	60	6	21315 +8760	870 -418	1288 +385	98 +4	15	50 -7	40 +10	20 +20

Wyvernbane	Hobble Pierce Formula: 3.2*ATK Attacks 1 enemy. Has a 20% chance of placing a 15% [Decrease SPD] debuff for 2 turns. Decrease SPD 15%	Setback Formula: 5.9ATK Formula: 0.2MAX_STAMINA Attacks 1 enemy. Has a 35% chance of decreasing the target's Turn Meter by 20%. Cooldown: 4	Cursefire Spear Formula: 6.1*ATK Attacks 1 enemy. Has a 75% chance of placing a [HP Burn] debuff for 2 turns. Cooldown: 5 HP Burn	-
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.]