Like all Tyranid species, this Bio-Titan seems to be able to mutate rapidly, evolving new weapons and defences as required. The genetic process through which the Norn-Queen develops such unusually large biological constructs remains a mystery to the Imperium's Magos Biologis. Whilst it seems that a Hive Tyrant or Carnifex could easily be a further adaptation of the basic genome and body plan of a Tyranid Warrior, no other known Tyranid bioforms are a logical precursor for the Hierophant. Combating a Bio-Titan like the Hierophant is simply a matter of applying the heaviest firepower available; large ordnance weapons and heavy artillery have so far proved the only effective weapons for Imperial forces in destroying the hideous Tyranid Bio-Titans.
- Twin Bio-Cannons - Bio-Cannons spew forth a hail of corrosive maggot-like organisms. These creatures are highly acidic and will explode on impact with the target, splattering gobbets of bio-acid and poison that melt through a tank's armour in minutes, leaving the unfortunate crewmembers a pile of goo. The Hierophant is armed with two of these.
- Blades & Claws - Many different Tyranid biomorph weapons made for close combat appear on Hierophants, including but not limited to Scything Talons, for tearing through infantry, and Crushing Claws, for crushing vehicles.
- Lash Whips - Living ropes of muscle and sinew which can entangle, bind and strangle as if with a will of their own. These are used to protect the Hierophant's vulnerable underbelly.
- Toxic Spores - Hierophants constantly exude a cloud of highly toxic poisonous spores. These are lethal to all non-Tyranid creatures, forming a drifting vapour about the Hierophant that chokes and burns the lungs of anyone without the proper protection that is brave enough to get close to the monstrous beast.