SD Gundam 00 Raiser. This gundam appears in the season 2 of Gundam 00. The Gundam 00 Raiser is basically the combined form of Gundam 00 (the mobile suit itself piloted by Setsuna F. Seiei, the main protagonist of the story) and the GN Raiser (the fighter plane piloted by Saji Crossroad, an former anti-Gundam which turned a member of Celestial Being, the gundam organization in the story).
Some images of Gundam 00 taken from Infinite Zenith (without permission):
Gundam 00 charging up. . .
Gundam 00 Raiser in flight (or drifting rather, lol. for this one is in space)