Bulakbagyo

Air Form. The  Bulakbagyo can enter a hostile creature's space and stop there. It can move through a space as narrow as 1 inch wide without squeezing.

Flyby. The  Bulakbagyo doesn't provoke opportunity attacks when it flies out of an enemy's reach.

Evasion. When the  Bulakbagyo is subjected to an effect that allows it to make a Dexterity saving throw to take only half damage, it instead takes no damage if it succeeds on the saving throw, and only half damage if it fails.

Multiattack. The Bulakbagyo makes two bite attacks.

Bite. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 14 (2d8 + 5) piercing damage.

Typhoon's Whirlwind (Recharge 4–6). Each creature in the Bulakbagyo's space must make a DC 13 Strength saving throw. On a failure, a target takes 15 (3d8 + 2) bludgeoning damage and is flung up 20 feet away from the creature in a random direction and knocked prone. If a thrown target strikes an object, such as a wall or floor, the target takes 3 (1d6) bludgeoning damage for every 10 feet it was thrown. If the target is thrown at another creature, that creature must succeed on a DC 13 Dexterity saving throw or take the same damage and be knocked prone.

If the saving throw is successful, the target takes half the bludgeoning damage and isn't flung away or knocked prone.

Crystallizing Beam (Recharge 3-4).  Projectile Attack: +9 to hit.  Hit: The Bulakbagyo picks a target with in 120 feet of it and fire a beam from it's crystal tail. The creature takes 15 (4d6+5) radiant damage. The creature then has to make a DC 15 Constitution saving throw. On a failure, the person begins to become covered in a opal/pink crystal and be trapped petrified.

Opal Mirrored Wings.  When attacked with a projectile, it can roll a DC 16 dexterity save and on a success, the reflective surface of its wings will bounce projectiles away.