The Tyranid hive fleets have spawned a monstrous menagerie of bioforms, from hulking shock assault creatures to sinister and looming psychic nightmares. Screamer-Killers are a larger, atavistic adaptation of the Carnifex strain, named by Imperial troops for the distinctive howl they emit as they unleash their bio-plasmic blasts. Neurotyrants are immensely powerful mind-beasts, capable of guiding huge swarms and projecting a Shadow in the Warp that drives nearby prey to screaming madness.

This multipart plastic kit builds a Screamer-Killer and a Neurotyrant, as well as two accompanying Neuroloids. The huge Screamer-Killer rampages into battle with four massive scythe-bladed limbs, protected by an armoured carapace as it spits burning bio-plasma. The Neurotyrant is a strange and sinister creature – its almost vestigial body supports a massive cranium topped by a chitinous crown, allowing it to send psychic signals to the tentacled Neuroloids that serve its monstrous will.