The Phased Plasma-fusil was carried into combat by the Thallaxii, heavily augmented cyborg shock-troops utilised by the Mechanicum's Ordo Reductor, and by their Questoris Knight Magaeras and Minotaur artillery tanks. A magos, such as a Magos Prime, Magos Dominus or Magos Reductor could also choose to carry one into combat.