Demytha vs Executioner vs Headsman

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Demytha	Dwarves	Void	Support	Epic	Defence 20% Place: All battles
Executioner	Knight Revenant	Magic	Defence	Rare	Defence 17% Place: All battles
Headsman	The Sacred Order	Spirit	Attack	Rare	-

Stats comparison

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Demytha	60	6	18990	749	1288	102	15	50	30	0
Executioner	60	6	14865 -4125	782 +33	1255 -33	89 -13	15	50	40 +10	0
Headsman	60	6	10740 -4125	1354 +572	958 -297	100 +11	15	57 +7	30 -10	0

Skills comparison

Demytha	Fires of Old Formula: 3.2*ATK Attacks 1 enemy 2 times. Each hit places a [Shield] buff for 2 turns, equal to 10% of this Champion's MAX HP, on the ally with the lowest HP (except this Champion). Shield	Light of the Deep Formula: (0.025TRG_HP)+((0.025TRG_HP)*(totalIncreasedTurnsCountBySkill+totalDecreasedTurnsCountBySkill)) Increases the duration of all ally buffs by 1 turn, then decreases the duration of all ally debuffs by 1 turn. Also heals all allies by 2.5% of their MAX HP. Heals by a further 2.5% MAX HP for each turn added to or removed from the duration of buffs and debuffs by this skill. Cooldown: 4	Channel the Bloodline Places a [Block Damage] buff on all allies for 1 turn, and a 15% [Continuous Heal] buff on all allies for 2 turns. Cooldown: 5 Block Damage Continuous Heal 15%
Executioner	Shield Bash Formula: 5*ATK Attacks 1 enemy. Has a 15% chance of placing a [Stun] debuff for 1 turn. Stun	Tumult Formula: 2ATK+2.4DEF Formula: 0.2*MAX_STAMINA Attacks all enemies. Decreases the Turn Meter by 20%. Has a 50% chance of placing a 15% [Decrease SPD] debuff for 2 turns. Cooldown: 4 Decrease SPD 15%	Schiltron Places a 60% [Increase DEF] buff and a [Counterattack] buff on this Champion for 3 turns. Cooldown: 7 Counterattack Increase DEF 60%
Headsman	Public Execution Formula: 1.57*ATK Attacks 1 enemy 2 times. Each hit has a 10% chance of placing a [Fear] debuff for 1 turn. Fear	Headman's Due Formula: 3.7*ATK Attacks all enemies. Has a 30% chance of placing a 100% [Heal Reduction] debuff for 2 turns. Cooldown: 3 Heal Reduction 100%	Judged Guilty [P] Formula: 0.15*DMG_MUL Inflicts 15% more damage to targets under [Heal Reduction] debuffs.