Before the war, Nova was a superb student of the Elite Guard academy. When I start displaying my unique skills, however, he became bitter and left the academy. Upon hearing the deeds of Megatron, he sought to revive the Decepticons as Novatron. Since then, we have become arch enemies towards each other, similar to Optimus and Megatron.
-He wields a Fusion Cannon to honor Megatron, though it can also shoot fire and has a blade mode
-He don't like Earth based forms so he still retains his cybertronian aircraft mode