Black Caimat

Dive Attack. If the Caimat is flying and dives at least 30 feet straight toward a target and then hits it with a melee attack, the attack deals an extra 9 (2d8) damage to the target, they are also knocked prone.

Entrance. One humanoid the Caimat can see within 30 feet of it must succeed on a DC 16 Wisdom saving throw or be entranced for 1 day. The charmed target will have a speed of 0 and won't benefit from any speed bonuses. This effect ends when the charmed target is knocked unconscious or the Caimat is knocked unconscious or killed.   

Multiattack. The Caimat makes three attacks: one with its bite and two with its claw. 

Bite. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 10 (3d6 + 4) [piercing damage ] damage. Hit: 12 (2d4+2) necrotic damage.

Claws. Melee Weapon Attack: +8 to hit, reach 5 ft, one target. Hit: 6 (2d4+2) slashing damage.