Basan

Ethereal Jaunt. As a bonus action, the basan can magically shift from the Material Plane to the Ethereal Plane, or vice versa.

Multiattack. The basan makes three attacks: one with its wings and two with its bite or claw.

Wing. Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 14 (2d8 + 5) bludgeoning damage. If the target is size medium or smaller, it must make a DC 17 Strength or Dexterity saving throw or be knocked back 5 ft.

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

Claw. Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 16 (3d6 + 5) slashing damage.

Fire Breath. The basan exhales fire in an 15 foot cone. Each creature in that area must make a DC 16 Dexterity saving throw, taking 28 (5d10) fire damage on a failed save, or half as much damage on a successful one.

Blurred Existence. The Basan enters a semi-ethereal state, imposing disadvantage on one attack, or gains advantage on saving throws.

Flutter. While falling, the basan can flap its wings, slowing its descent to 60 ft. per round. If it does so, it can land on its feet and takes no falling damage.