Sepulcher Sentinel vs Mountain King

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Sepulcher Sentinel	Knight Revenant	Force	Defence	Epic	Defence 25% Place: All battles
Mountain King	Dwarves	Force	Attack	Legendary	Attack 25% Place: All battles

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Sepulcher Sentinel	60	6	16185	903	1321	98	15	50	45	0
Mountain King	60	6	31050 +14865	1432 +529	1112 -209	95 -3	15	63 +13	90 +45	0

Sepulcher Sentinel	Sword of Withering Formula: 3.3*DEF Attacks 1 enemy. Has a 40% chance of placing a 50% [Decrease ATK] debuff for 2 turns. Decrease ATK 50%	Sepulcher Shield Places a 60% [Increase DEF] buff and a [Block Debuffs] buff on all allies for 2 turns. Cooldown: 5 Block Debuffs Increase DEF 60%	Untouched By Death [P] Formula: -1*DMG_MUL Has a 25% chance of completely blocking incoming damage when an ally is attacked. Occurs once per turn. Will only block damage for the targeted ally if multiple allies are attacked at the same time. Cooldown: 1	-
Mountain King	Thunder Cleave Formula: 0.27HP+1ATK Formula: 0.1MAX_STAMINA+0.02MAX_STAMINA*REL_TRG_BUFF_COUNT Attacks 1 enemy. Fills this Champion's Turn Meter by 10%. Fills by an additional 2% for each buff on the target.	Enchanted Axe Formula: 0.3HP+1.8ATK Attacks 1 enemy. Will ignore 50% of the target's DEF. Grants an Extra Turn if this attack kills an enemy. Cooldown: 5	Regal Force Formula: 0.35HP+1.8ATK Attacks 1 enemy. Will ignore [Shield], [Strengthen], [Unkillable], [Ally Protection], and [Block Damage] buffs. Decreases the cooldown of the Enchanted Axe skill by 2 turns if this attack kills an enemy. Cooldown: 5	Fabled Skill [P] Formula: 0.5B_ATKKILLED_ENEMIES_WHOLE_BATTLE Increases this Champion's ATK by 50% each time this Champion kills an enemy. Stacks up to 100%. Immune to [Decrease ATK] and [Block Active Skills] debuffs.