Go to aberration, then go to the green surface entrance. Don’t go to the surface but stay in the entrance area. Turn off your light then wait for nameless to spawn, don’t let the alpha nameless stay in the area for too long because it will spawn a reaper in-front of you and probably get you killed. Use the nameless venom on a baby rock drake as its food. It also uses nameless venom as a imprint, once you’ve done it enjoy your rock drake.