Bukavac

Hold Breath. The bukavac can hold its breath for 20 minutes.

Standing Leap. A bukavac's long jump is up to 20 feet and its high jump is up to 10 feet, with or without a running start.

Multiattack. The bukavac makes one Bite attack, one Gore attack, and two Claw attacks.

Bite. Melee Weapon Attack: +9 to hit, reach 10 ft., one target. Hit: 16 (2d10 + 5) piercing damage.

Claw. Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 11 (1d12 + 5) slashing damage, and the target is grappled (escape DC 16) if it is a Medium or smaller creature. The bukavac can have no more than two creatures grappled at a time.

Gore. Melee Weapon Attack: +9 to hit, reach 10 ft., one target. Hit: 21 (3d10 + 5) piercing damage.

Croaking Blast (Recharge 5-6). A bukavac can emit a howling thunderclap in a 15-foot radius. Each creature in that area must make a DC 16 Constitution saving throw. On a failure, a creature takes 36 (8d8) thunder damage and is deafened until cured by the lesser restoration spell or similar magic. On a success, a creature takes half the damage and isn't deafened.