Endgame

Star Wars: The Transformers Wars is the final episode where Optimus Prime uses the Matrix of Leadership to destroy Darth Grievous.

Episode summary
The huge space fleets of Autobot Venator Star Destroyers and the huge space fleets of Darth Grievous's Sith Legion clashed in the Skies of Korriban. Breakaway had found the Matrix of Leadership but was injured recovering it. The Autobot Ratchet and Wheeljack insert the Matrix into Primes chest and it help heal Optimus Primes wounds and Optimus Prime got the strength to help his fellow Autobots and Jedi win the war. After the Defeat of the sith fleet the Venator Star Destroyers penetrated the airspace of Korriban and the Autobots launched an all out attack against Darth Grievous's Korriban Sith Fortress. The Autobot Cars were trying to stop the Stunticons and the Constructicons on the inside of the fortress while the Autobot Jets fight the Seekers outside of the Temple. Springer and Blurr manage to win a lightsaber fight with the Sith Troopers and Breakaway was able to assist Prime into taking down the door that leads to Darth Grievous's Throneroom where Optimus Prime pull out his lightsaber to challenge the Dark Lord in an ultimite battle to the finish. The Coneheads were killed by the Aerialbots while the last remains of Darth Grievous's Sith Legion made their last stand but the Jedi working with the Autobots were able to crush them. Starscream got into a lightsaber fight with Silverbolt while Thundercracker and Skywarp tries to team up with Starscream to defeat the Aerialbot Leader but the three ended up injured. Meanwhile in the throneroom Optimus Prime got injured by Darth Grievous's Dark side of the Force and the evil dark lord had used his destructive powers to injure all of the Autobots and killed 90 Jedi. Optimus Prime kepts getting up to fight Darth Grievous despite how many times he got zapped by the sith Lightning and threw objects at Darth Grievous but he used his cape to teleport behind Optimus Prime and punched and kicked him very hard. Optimus Prime was then picked up by the Dark Lords hands and was about to sufficate Prime until Optimus's chest opens up and Optimus Prime pulls out his Matrix of Leadership to light our darkest hour. The Matrix of Leaderships energy has killed all the Sith Lords in the Galaxy and Darth Grievous starts to get destroyed by the Matrixs energy. The Sith Fortress explodes slowly while all the Autobots and the Jedi escaped. Back on Cybertron the Autobots were hailed as heros while on Coruscant the Jedi were hailed as saviors from darkness. The Seekers went into exile while Darth Grievous as a ghost said "We shall rise again!".