Sunstorm believes that he is the living embodiment of the Will of Primus, placed by the divine in this universe to deal righteous judgment on the blasphemous. His judgment is swift, painful, relentless, and punctuated with the recitation of Holy Writ. His power is only surpassed by his conviction.
He was one of the Decepticon jets on Cybertron four million years ago.
Originally sold only in a separately-packaged-toys set with Hauler exclusive to e-Hobby, Sunstorm is a redeco of the original Starscream toy, transforming into an F-15 fighter jet.
Sunstorm was later reissued in 2008 due to the encore line, sold with a special comic in which he appears. (Which I own as of a year ago) The only difference is that the "Collector's Edition mark is on the other top corner and it now has a Takara Tomy mark instead, as well as the heat rub sign is relocated to the other side ( facing away from you, it's the right side in alt mode)