Air Mimicry – The character’s body is composed of air. Air of the Elementals of Doom is an example of a character with this power (Fantastic Four V1 #232).
The RPG Air Elemental was first introduced in the AD&D 1st-Monster Manual.
RPG Air Elementals have become considerably more muscular and evil looking over the decades (World of Warcraft Monster Guide).
The Dungeons and Dragons universe has a wide variety of air elementals including the Aerial Servant (TSR 2102 MC1 Monstrous Compendium), Belker (D&D 3.5 – Monster Manual I), Wind Walker Elemental (TSR 2145 Monstrous Compendium Annual Volume 1), and Windrider (Creature Collection II. Dark Menagerie).
The Celestian (Creature Collection I) are giants that were transformed into air as a punishment.