Durguth, warlord of the Thraal Imperium, is a nasty piece of work. He may be a big fish in a small pond, but he's an awfully mean fish. He's not so tough once you bust up his giant, heavily-armed exo-suit, though.
Titan Magazines Transformers (2007) comics continuity
Durguth led his people, the blue-skinned Thraal, in a brutal war against the green-skinned A'ovan. With the battered A'ovan on the run, he charged into their encampment in his exo-suit and demanded their surrender...only to be challenged by the spatially-displaced Autobot medic Ratchet. The Cybertronian swiftly disarmed him and disassembled his battlesuit, making him, by law, the new ruler of the Thraal Imperium. Ratchet quickly put an end to the conflict, negotiating a peace between Thraal and A'ovan.