Thornback Carapace (Armor)
Not to be confused with Thornback, the Thornback Carapace is a very durable armor piece that is covered in blades. Every time an enemy attacks the Hive Tyrant in melee they take damage.

Devourer Cannon
The Devourer Cannon is a unique ranged weapon. It fires a parasite at the enemy which will cause damage over time to their entire squad. To maximize the effect, the Tyranid player should try to attack multiple squads in order to inflict the most amount of damage.