The "Unicron Trilogy" version of Optimus Prime is a fictional character of this branch of Transformers lore. Appearing in Transformers: Armada, Transformers: Energon and Transformers: Cybertron (known as the aforementioned trilogy), Optimus is the leader of the heroic Autobots. He often converted to his super combat mode. In all three series, Optimus' English voice actor is Garry Chalk, who previously voiced Optimus Primal in Beast Wars and Beast Machines.
Commander class figures all come with translucent weaponry, and feature some amount of translucent plastic in their bodies (blue for Autobots, but a variety of colors for Decepticons), a feature designed around interacting with the line's vehicles (see below). Each vehicle is equipped with an "Energon Booster", a light-up accessory that can plug into the Commanders' weapons or into the posts and ports on the figures' backs to illuminate them with "glowing energon power".
Later, at the peace celebration, Prime was watching a procession of Autobots when Decepticons attacked. Optimus ordered Omega Supreme into action but the huge Autobot was quickly overcome by Menasor, Piranacon and Predaking. The Art of War #3 Prime hopped into the fray, saved a civilian from getting smushed by the falling Omega, rode Sixshot into Piranacon's face, smashed Astrotrain into the ground, and carried a wounded civilian out of danger.
This. Is. Awesome. I remember running LEGO piece auctions ~1998/99 on RTL (rec.toys.lego) then later my own website. I’d buy sets at Walmart and other places on discount, break them out, and sell the pieces as lots. I knew I’d always make good money if I could average < $0.10/piece cost (ideally around $0.07) and sell for $0.15 – $0.20+ … fun times!
On a mission with the Triggerbots to stop Megatron from claiming the Underbase, Prime was forced to jettison the massive databank into space to prevent anyone from acquiring its power. With this action, he proved his wisdom and skill to the Autobot Council of Elders. He continued to move up in rank, eventually becoming the field command over the Autobot armies.
This gold vacuum metallized (save for his black joints, which they were made out of unpaintable plastic) Protoform Optimus Prime figure was featured as a Lucky Draw giveaway (along side similarly gold vac-metal versions of Voyager class Optimus Prime and Protoform Starscream) in the December 2007 issue of TV Magazine. Released in 2008, only 5 pieces were made, making it one of the rarest Lucky Draw figures; the images at right represent the only known photographs of it.