Vasal of the Seal vs Magister

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Vasal of the Seal	Demonspawn	Force	HP	Legendary	HP 33% Place: All battles
Magister	High Elves	Force	Support	Rare	HP 22% Place: Crypts

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
Magister	60	6	18000 -3315	892 +22	936 -352	101 +3	15	50	30 -10	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.]
Magister	Majestic Staff Formula: 4.1*ATK Attacks 1 enemy. If the hit is critical, places a 25% [Increase ATK] buff on a random ally for 1 turn. Increase ATK 25%	Anoint Formula: 0.1*TRG_HP Places a [Revive On Death] buff and a 30% [Reflect Damage] buff on a target ally for 2 turns. Heals all other allies by 10% of the target's HP. Cooldown: 4 Revive On Death Reflect Damage 30%	Censure Formula: 4*ATK Attacks all enemies. Has a 50% chance of placing a 50% [Heal Reduction] debuff for 2 turns. Cooldown: 5 Heal Reduction 50%	-