Chupacabra

Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 10 (2d6 + 3) slashing damage plus 3 (2d6) necrotic damage. If the target is a Large or smaller creature, it is grappled (escape DC 13). Until this grapple ends, the chupacabra can bite only the grappled creature and has advantage on attack rolls to do so.

Blood Drain (Recharge 5-6). The chupacabra draws vitality from each creature in a 15-ft cone. Each creature in that area must make a DC 13 Constitution saving throw, taking 14 (4d6) necrotic damage on a failed save, or half as much damage on a successful one. The chupacabra regains hit points equal to the amount of damage dealt this way.