Channeler vs Vasal of the Seal

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Channeler	Skinwalkers	Spirit	Support	Rare	Resist 30 Place: Crypts
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
Channeler	60	6	17175	881	1002	103	15	50	30	0
Vasal of the Seal	60	6	21315 +4140	870 -11	1288 +286	98 -5	15	50	40 +10	20 +20

Channeler	Rage of Ancients Formula: 4.7*ATK Attacks 1 enemy. Has a 25% chance of placing a 50% [Heal Reduction] debuff for 1 turn. Heal Reduction 50%	Halt! Formula: 6.4*ATK Attacks 1 enemy. Has a 50% chance of placing a [Stun] debuff for 1 turn. Cooldown: 4 Stun	Agility Formula: 0.15*MAX_STAMINA Places a 30% [Increase SPD] buff on all allies for 2 turns. Fills the Turn Meter of all allies by 15%. Cooldown: 6 Increase SPD 30%	-
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.]