Headsman (5e Creature)
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Medium humanoid (any race), any alignment
Brute. A melee weapon deals one extra die of damage when the headsman hits with it (included in the attack).
Devastating Critical. A headsman always deals maximum damage on a critical hit (53 slashing damage).
Executioner's Axe. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 16 (2d12 + 3) slashing damage. If the creature is incapacitated, or reduced to 0 hit points by the attack, its head is severed, killing it instantly.
Headsmen are professional dispensers of high justice.