“An alien threat has risen from beyond the abyss, a swarm so vast that it blots out the stars. This horror fights neither for power nor territory, but rather to feed a hunger so insatiable that it will eventually devour the entire galaxy.” — Inquisitor Kryptman The Imperium of Man faced several Tyranids incursions. Behemoth in Ultramar, Leviathan on Baal. What kept them separate was that Behemoth was a brutal force, lead by the Swarmlord himself. Leviathan was attacking from two differents galactic plane, and their psychic powers were beyond any human could have seen. The Hive Mind knows how to improve its forces, in constant evolution. What was seen today was the most horrific of both. Brutal force, enormous monsters, and blasts of absolute psychic powers. A Tzeentch force and its Lord of Change would be the first one to meet with this horrific vision. The brutality of Behemoth and the warp powers were too strong, even for the ones that serve the Changer of Ways. There was nothing left from the horrors and the demons after the Hive Fleet walk the battlefield.