Flight Mode

The Flight Mode was a combination from Optimus Prime and Wing Saber in the Energonfranchise.

Energon anime
When Optimus Prime went into Unicron on his own, he was interrupted by Starscream, Mirage and Shockblast. When Starscrem was about to attack him, with his sword, Wing Saber bashed through the wall and blocked the attack. Optimus, who thought, that Wing Dagger died, was happy to see him. After Wing Saber explains, how he survived, he seperated his 4 Parts and combined with Optimus into flight mode. The golden glowing Optimus bashed the Decepticons out of his way with a single blast and headed out to battle Megatron (Armada).