Realm: Energy
Field: The area is a three-layer field of clouds, of varying sizes and shapes (some like stepping stones, some like vast fields, rolling hills and great mountains). The middle layer is solid enough to stand on. The bottom layer is thinly tangible, like quicksand (you could only stand on them a short time before you sink through; this means you'd have to move constantly to keep from falling into the gray nothingness of an endless stormy sky). And above the middle field, the clouds are entirely intangible, unable to be stood on at all (you'd fall immediately back to the middle layer). Occasionally, lightning passes harmlessly between one cloud layer and another. If touched by a lightning bolt, one transports from one field to another.
Colossus: A fierce colossus. At first, it appears to be only a great bird, but when it spots prey, it changes into an energy form. It may be a form of pure light (capable of projecting lasers and bolts and blasts), a form of fire (capable of breathing and manipulating fire, and hurling fireballs), or of electricity (capable of zapping and electrocuting anyone unfortunate enough to get in its way). Its sight is going, however, so when it loses sight of its prey, it often bursts into a swarm of hummingbird sized mini-colossi. These are each composed of whatever the bird's current energy is. It never mixes elements.
“…Judge not what a man has done, but judge what he could have done if he was a different bloke altogether. For art thou a leper? And a leper can changeth his spots…” --Rudy Wade, Misfits (Series 4, Episode 8)