Shamrock vs Executioner vs Headsman

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Shamrock	Ogryn Tribes	Spirit	Support	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
Shamrock	60	6	20805	1002	1189	111	15	50	40	0
Executioner	60	6	14865 -5940	782 -220	1255 +66	89 -22	15	50	40	0
Headsman	60	6	10740 -4125	1354 +572	958 -297	100 +11	15	57 +7	30 -10	0

Skills comparison

Shamrock	Luck Swap Formula: 2*ATK Formula: 0 Attacks 1 enemy 2 times. Each hit has a 60% chance of removing 1 random buff from the target. If a buff is removed, has a 35% chance of stealing that buff.	Lucky Charms Places a 60% [Increase DEF] buff on all allies for 2 turns. Places a 30% [Increase SPD] buff on all allies with more than 50% HP for 2 turns. Also has a 50% chance of placing a 30% [Increase C. RATE] buff on those allies for 2 turns. Places a [Revive On Death] buff on all allies with less than 50% HP for 2 turns. Also has a 50% chance of placing a 15% [Continuous Heal] buff on those allies for 2 turns. Cooldown: 4 Revive On Death Block Debuffs Continuous Heal 15% Increase DEF 60% Increase SPD 30% Increase C. RATE 30%	Uncatchable Formula: 0.15MAX_STAMINA Formula: 0.15MAX_STAMINA Places a 30% [Decrease SPD] debuff on all enemies for 2 turns. Decreases the Turn Meter of all enemies by 15%. Fills the Turn Meters of all allies by 15% if any enemy's Turn Meter is below 50%. Cooldown: 5 Decrease SPD 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.