Vasal of the Seal vs Boragar the Elder

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Vasal of the Seal	Demonspawn	Force	HP	Legendary	HP 33% Place: All battles
Boragar the Elder	Dwarves	Force	HP	Legendary	Resist 50 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
Boragar the Elder	60	6	21135 -180	925 +55	1244 -44	97 -1	15	50	50 +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.]
Boragar the Elder	Antique Staff Formula: 0.3*HP Attacks 1 enemy. Has a 50% chance of placing a 60% [Increase DEF] buff for 1 turn on the ally with the lowest HP. Will not be placed on this Champion. Has a 100% chance instead if this attack is critical. Increase DEF 60%	Souls of Old Stone Removes 1 random debuff from all allies, then places a [Shield] buff on all allies for 2 turns equal to 20% of this Champion’s MAX HP. Cooldown: 4 Shield	Rune of Energy Places a 50% [Increase RES] buff and a 30% [Increase SPD] buff on all allies for 2 turns. Cooldown: 6 Increase SPD 30% Increase RES	Boragar's Blazon [P] Formula: -0.1*DMG_MUL Allies receive 10% less damage from Champions whose RES is lower than or equal to theirs.