I’m currently still doing the the story mode (I can teleport up to realm level 44). I started breeding for Diabolic type species but I stupidly consumed all my Diabolic Observer cores. So I set out to extract some more but I can’t seem to find any anymore. I travelled through all the previous realms and I seem to run into the same monsters over and over again, but no more Diabolic Observers.
What determines which species spawn in a level? Is it story related?