Probably the most sophisticated Mechanist robot built before the order vanished. It was much faster and maneuverable than the Combat Bot, and armed with a sawblade launcher. The purpose of the second head is unclear. It may be a carry-over from an earlier design.
These robots are encountered few and far between. Tactics are the same with the Combat Bot; Two Water Arrows or 1 Gas Arrow (though a Gas Arrow ought to be spared for different targets) in the boiler, or high explosives will disable it. Flash bombs will also blind the robot. Nine blackjack hits are needed to disable the robot. Like all other robots, the bodies can be broken down into 'corpses'.