Executioner vs Headsman vs Haarken Greatblade

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Executioner	Knight Revenant	Magic	Defence	Rare	Defence 17% Place: All battles
Headsman	The Sacred Order	Spirit	Attack	Rare	-
Haarken Greatblade	Barbarians	Void	Attack	Epic	Attack 32% Place: Doom tower

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST
Executioner	60	6	14865	782	1255	89	15	50	40
Headsman	60	6	10740 -4125	1354 +572	958 -297	100 +11	15	57 +7	30 -10
Haarken Greatblade	60	6	14865 +4125	1487 +133	826 -132	95 -5	15	60 +3	30

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.
Haarken Greatblade	Blooded Steel Formula: 3.3ATK Formula: 3.3ATK Attacks 1 enemy. Places an extra hit if this attack is critical.	Fearsome Iron Slab Formula: 6.2*ATK Attacks 1 enemy. Has a 75% chance of placing a 25% [Weaken] debuff on the target for 2 turns before attacking. Cooldown: 4 Weaken 25%	Infectious Panic Formula: 5.5*ATK Attacks 1 enemy. Applies a [Debuff Spread] effect, taking 2 random debuffs from the target and placing them on all enemies. Also extends the duration of those debuffs by 2 turns. Will not extend the duration of debuffs on the initial target. Cooldown: 5