Bone Devil A5E

Melee or Ranged Weapon Attack: +8 to hit, reach 10 ft. or range 20/60 ft., one target. Hit: 15 (2d10 + 4) piercing damage. If the attack is a melee attack against a creature the target is grappled (escape DC 16). Until this grapple ends the devil can't use its barbed spear on another target.

Melee Weapon Attack: +8 to hit, reach 10 ft., one target. Hit: 17 (2d12 + 4) piercing damage.

The devil magically turns invisible along with any equipment it carries. This invisibility ends if the devil makes an attack falls unconscious or dismisses the effect.

Melee Weapon Attack: +8 to hit, reach 10 ft., one creature. Hit: 13 (2d8 + 4) piercing damage plus 14 (4d6) poison damage, and the target makes a DC 15 Constitution saving throw, becoming poisoned for 1 minute on a failure. The target can repeat this saving throw at the end of each of its turns, ending the effect on a success.