Just did this for a bit for Season 4 ep 1, see it fitting in kinda mid episode. I have never written fanfic before so sorry if it sucks. After the loss of Megatron, Starscream and Shockwave the cons are without a leader. Blitzwing is recovering, stranded on a spacebridge outpost. Low on Energon he reflects on his life. Most of Blitz life was lost to him. Stellar cycles ago, in the opening stages of the war he was on a Decepticon Battle Cruiser. They were attacked by the Elite Guard and crashed. All of the crew died on impact on, apart from one bot. A Decepticon recovery team retrieved the wreck and the survivor was taken to Jhiaxus, the cons top scientist. His body was a wreck and his spark was severely damaged. Scalpel, Jhiaxus small assistant set about trying to stabilise blitz with no success. Jhiaxus had been experimenting with Sparks for cycles and thought the best way to save Blitz would be to fuse another spark with his. The 2 sparks fused, but the spark was still too unstable so a third spark was fused with them. The operation was a success, but the 3 sparks behaved erratically with each other. Scalpel then set apart putting blitz back together with other parts from the crew. As the experiments continued they discovered with the additonal sparks he could control more than one alt mode. Jhiaxus in the hopes of creating a super soldier equipped the bot with superior ground attack and air attack alts and name him Blitzwing. Initial results looked impressive and Blitzwing was sent to serve on the Nemesis. Megatron had hoped he would be a replacement for the scheming Starscream, but as the sparks began to unravel and he went mad. Still having the potenialas a capable foot soldier Megs kept him around.