The Tyranids are an all-consuming alien swarm from beyond the known galaxy. Driven by the vast and ineffable intellect of the Hive Mind, their tendrils drive into fresh systems with every passing hour. These single-minded metapredators cannot be reasoned with, bought off, or put to flight. They seek only to strip each new world they encounter, devouring every shred of biomass to feed the relentless advance of the hive fleets and leaving dead, airless husks in their wake.
Biovores are living artillery pieces, swollen with the clutch of explosive Spore Mines that they nurture within their bodies. Upon anchoring itself to the ground with chitinous spurs, a Biovore undergoes violent spasms that expel its volatile offspring in high arcs as living ammunition. From there, the gas-bloated Spore Mines detonate in a shower of bone shards and acid rain, or else drift languidly down onto the battlefield, primed to explode whenever prey draws near.
Each Norn Emissary is a purpose-bred beast, spawned by its Norn Queen to accomplish a specific and singular objective – be it hunting a strategically gifted commander, abducting a knowledgeable prey-being, or pursuing some other ineffable goal. These colossal heralds of the Hive Mind's agenda meld terrifying psionic potential with speed, intelligence, and monstrous strength, ensuring that a Norn Emissary is more than equal to its alien task.
Genestealers are peerless predators, swift vanguard organisms armoured in chitinous plates and possessed of terrifying strength and agility. Their broods move far ahead of the Tyranid hive fleets, to seek out fresh feeding grounds and spread their insidious genetic infection amongst the defenders. When the invasion swarms finally descend, the Genestealers burst from hiding to begin the slaughter.
Hormagaunts are swarming shock troops, seeded onto prey worlds in their billions. As simple hunter-slayer organisms, spawned Hormagaunts can be left to rampage across battlefields and populations, wearing down defence lines and forcing the prey to expend lives and ammunition. Many formidable bastions have been buried in literal mountains of these chitinous horrors, driven by the will of a terrible synapse beast.
The Deathleaper is a rare and advanced development of the Lictor strain, perfectly evolved to act as a terror weapon. This apex Lictor possesses an instinctive understanding of how to spread fear through hostile forces and prey populations alike, using its skills in stealth, infiltration, and assassination to sow paranoia and dread before the hive fleet attacks en masse.
Neurolictors are nightmarish living weapons of psychological warfare, engineered to implant mind-altering parasites and project a neural disruption field that provokes atavistic terror responses in even the most hardened prey. As an offshoot of the Lictor bioform, Neurolictors possess a nigh-supernatural ability to evade notice – which renders their sabotage all the more terrifying, as these insidious effects often seem to emerge from out of thin air.
Lictors are a sinister adaptation of the Tyranid Warrior bioform, specialising in infiltration, scouting, and assassination. Hidden by their chameleonic skin, these vanguard beasts stalk their prey beyond the reach of the Hive Mind's synaptic web, leading the greater swarm to fresh targets with a potent pheromone trail. Lictors pick off their prey opportunistically, always looking for a chance to crack open an unwary skull and use their feeder tendrils to suck out the secrets within.
Termagants are scuttling predators that attack in huge swarms, armed with living weapons that spit flesh-eating organisms and venomous spines. Originally spawned to roam the tight arterial passages of hive ships and hunt intruders, Termagants harry their prey with a hail of firepower, seeking always to outflank and envelop their victims as they erode their numbers.
Barbgaunts are little more than living weapons, their bodies and biological cannons slaved to the will of a pulsating ganglio-parasite that piggybacks them into battle. Once there, they unleash volleys of chitinous barbs that detonate with the fury of violent muscle-spasms, transfixing nearby victims with a hail of jagged projectiles.