Frostwyrms

Frostwyrms are apex predators from the tainted moon called "The Gates of Moment" in Warhammer 40,000. They resemble hideous mixtures of reptilian and insectoid, and are capable of phasing through solid matter. They may also exist within The Mortal Realms of Age of Sigmar, similar to the Grox. This is due to the fact that the Ogors of the Beastclaw Raiders subfaction of Ogor Mawtribes have access to a Relic known as the "Elixir of Frostwyrm".