Executioner vs Headsman vs Royal Huntsman

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	-
Royal Huntsman	High Elves	Spirit	Attack	Legendary	Attack 38% Place: All battles Element: Spirit

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
Royal Huntsman	60	6	16350 +5610	1553 +199	936 -22	105 +5	15	63 +6	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.
Royal Huntsman	Confident Shot Formula: 3.1*ATK Attacks 1 enemy. Places a 50% [Increase ATK] buff on this Champion for 2 turns if this attack is critical. Increase ATK 50%	Slaughter Volley Formula: 3.6*ATK Attacks all enemies. Places a 60% [Decrease DEF] debuff on the target for 2 turns if this attack is critical. Cooldown: 4 Decrease DEF 60%	Dead Aim Formula: 5*ATK Formula: -1 Attacks 1 enemy. Will ignore DEF by 100%. Cooldown: 5