Energon Harvester

An Energon Harvester was used by the Ancients to harvest energon. As energon flows in the bodies of all Transformers, the Harvester can be a deadly weapon in Decepticon hands.

Prime cartoon
When the Autobots detected an energon vein in Greece, Bulkhead and Miko went to investigate. There they spotted a painting of a god wielding the Energon Harvester and figured one must be on Earth. Bulkhead encountered Breakdown at the construction site, which meant the Decepticons also knew about the Harvester. After some online searching, Raf found an identical orb in a museum, which Optimus Prime confirmed to be genuine.

Team Prime surrounded the museum, while Ratchet GroundBridged the children into the museum to steal the Harvester. But Knock Out and Breakdown attacked the Autobots, Soundwave snatched the Harvester from the kids, and Miko was arrested. Bulkhead deduced Starscream would return to Greece to harvest the untapped energon source. Starscream had already demonstrated its power by absorbing the life from a Vehicon and was harvesting the energon when Bulkhead arrived. The Decepticon attempted to use it to kill Bulkhead, but he grabbed onto it, causing it to overload. Bulkhead threw the Harvester into the air, where it safely exploded.

Later, Agent Fowler gave a replica of the Harvester (made by Ratchet) to the museum and got Miko out of trouble with the security guard.