Harvest Jack vs Executioner vs Headsman

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Harvest Jack	Undead Hordes	Spirit	HP	Legendary	Accuracy 70 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
Harvest Jack	60	6	26925	859	925	102	15	50	40	20
Executioner	60	6	14865 -12060	782 -77	1255 +330	89 -13	15	50	40	0 -20
Headsman	60	6	10740 -4125	1354 +572	958 -297	100 +11	15	57 +7	30 -10	0

Skills comparison

Harvest Jack	Harvest of Fear Formula: 0.06*HP Formula: (relationChance+0.5)/relationChance Attacks 1 enemy 3 times. Each hit has a 50% chance of stealing 1 random buff from the target. Each hit also has a 50% chance of placing a [Fear] debuff for 1 turn. This chance increases to 100% if the target has no active buffs. Fear	Dreams to Ash Formula: 0.16*HP Attacks all enemies. Removes all buffs from each target. Then places a 50% [Decrease ATK] debuff and a [Block Buffs] debuff on all enemies for 2 turns. Then grants an Extra Turn. Cooldown: 4 Block Buffs Poison 5% Decrease ATK 50%	Lord of Terror Formula: 0.21HP Formula: 0.3MAX_STAMINA Formula: 0.3*MAX_STAMINA Attacks all enemies. Has a 75% chance of placing a [True Fear] debuff for 2 turns. Also places a 30% [Decrease SPD] debuff for 2 turns and decreases each target's Turn Meter by 30% if the [True Fear] debuff is placed. Has a 75% chance of placing an unresistable [Sleep] debuff for 1 turn if the [True Fear] debuff is not placed. Also decreases each target’s Turn Meter by 30%. Cooldown: 4 Sleep True Fear Decrease SPD 30%	Leering Grin [P] Whenever an ally is attacked, has a 50% chance of decreasing the duration of all buffs on the attacker by 1 turn. Whenever this Champion is attacked, the chance increases to 100%. This Champion is immune to [Fear] debuffs.
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.	-