Death's Head

When created, a death's head takes one of three forms: Aberrant Head, Gnashing Head, or Petrifying Head. This form determines the creature's attack.

The death's head doesn't require air, food, drink, or sleep.

Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 4 (1d6 + 1) piercing damage plus 7 (2d6) necrotic damage.

Melee Weapon Attack:+3 to hit, reach 5 ft., one target. Hit: 4 (1d6 + 1) piercing damage plus 5 (1d10) necrotic damage, and the target must succeed on a DC 10 Intelligence saving throw or it can't take a reaction until the end of its next turn.

Moreover, on its next turn, the target must choose whether it gets a move, an action, or a bonus action; it gets only one of the three.

Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 3 (1d4 + 1) piercing damage, and the target must succeed on a DC 10 Constitution saving throw or be restrained as it begins to turn to stone.

The target must repeat the saving throw at the end of its next turn. On a success, the effect ends. On a failure, the target is petrified for 10 minutes.