Before the Locust War, the Lancer held a standard knife as a bayonet. But, after Emergence Day, the knife had great difficulty piercing the thick hide of the Drone. After the Battle of Jannermont, Tai Kaliso was able to kill a Drone with a power saw, resulting in Marcus Fenix giving the idea of the chainsaw bayonet to his father. Adam Fenix would later incorporate the chainsaw into the Lancer.