Grendel Prime enters Prime Access on October 18, 2023. Check out the latest trailer for Warframe to see what to expect. Grendel Prime unleashes the monstrous power of his signature Masseter Prime Heavy Blade and double-action Zylok Prime. Customizations that match Grendel's unparalleled appetite are available through Prime Accessories including the Sumbha Prime Syandana and Oni Prime Ephemera.