Aang, the Airbender

Flying

Whenever Aang, the Airbender attacks or blocks,
tap target nonflying creature an opponent controls.

{w}{u}{r}{g}: Exile Aang, the Airbender, then return
it to the battlefield under its owner's control. Activate only if you control 4 legendary artifacts named Airbending Scroll, Waterbending Scroll, Firebending Scroll and Earthbending Scroll.