Executioner vs Headsman vs Delver

Overall comparison

HERO	Fraction	Element	Type	Rarity
Executioner	Knight Revenant	Magic	Defence	Rare
Headsman	The Sacred Order	Spirit	Attack	Rare
Delver	Dark Elves	Spirit	Attack	Epic

Stats comparison

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Executioner	60	6	14865	782	1255	89	15	50	40	0
Headsman	60	6	10740 -4125	1354 +572	958 -297	100 +11	15	57 +7	30 -10	0
Delver	60	6	16350 +5610	1299 -55	914 -44	98 -2	15	60 +3	30	0

Skills comparison

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.
Delver	Necrotic Toxin Formula: 4*ATK Attacks 1 enemy. Has a 45% chance of placing a 100% [Heal Reduction] debuff for 2 turns. Heal Reduction 100%	Mark for Death Formula: 6.2*ATK Attacks 1 enemy. Places a 25% [Weaken] debuff on the target for 3 turns if the target has a [Decrease DEF] debuff. This debuff cannot be resisted. Cooldown: 4 Weaken 25%	Finisher Formula: 4*ATK Attacks all enemies. Places a 50% [Increase ATK] buff on this Champion for 2 turns before attacking. Also has a 50% chance of placing a 60% [Decrease DEF] debuff on the target for 2 turns before attacking. Cooldown: 5 Increase ATK 50% Decrease DEF 60%