Windstorm

The Windstorm (ウインドストーム) is an Emblem Heartless Boss from Kingdom Hearts 358/2 Days. It is in the same family of Heartless as the Wyvern.

Kingdom Hearts 358/2 Days
These large aerial Heartless use their potent whirlwind breath to attack their prey.

They are hard to hit in mid-flight, so strike their wings and tail to force them to land, then focus attacks on their head, which is weak against Thunder magic.