Executioner vs Headsman vs Guardian

Overall comparison

HERO	Fraction	Element	Type	Rarity
Executioner	Knight Revenant	Magic	Defence	Rare
Headsman	The Sacred Order	Spirit	Attack	Rare
Guardian	Knight Revenant	Spirit	HP	Rare

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
Guardian	60	6	19155 +8415	826 -528	925 -33	96 -4	15	50 -7	40 +10

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.
Guardian	Chop Formula: 4.8*ATK Attacks 1 enemy. Has a 50% chance of decreasing the duration of all buffs on the target by 2 turns.	Thunderclap Formula: ATK+0.03*HP Attacks 4 times at random. Each hit has a 30% chance of applying a [Block Buffs] debuff for 2 turns. Cooldown: 5 Block Buffs	Prayer Places a [Block Debuffs] buff and a [Counterattack] buff on this Champion for 2 turns. Also places a 15% [Continuous Heal] buff on this Champion for 2 turns. Cooldown: 5 Counterattack Block Debuffs Continuous Heal 15%