The highly corrupted xenoform known as the Malstrain is unique to Necromunda, thanks to the efforts of the now-deceased Heretek Magos Biologis Hermiatus. These twisted Genestealers are no less deadly and will cut even a stimmed-up Goliath brute to shreds in seconds. This box contains six Malstrain Genestealers alongside four Malstrain Tyramites, creatures unique to Necromunda that float around in swarms alongside their larger kin, plus an assortment of Malstrain Brood Scum heads you can combine with other bodies.