You know...if Nothing there is just immune to any and all physical attacks (red damage immunity, lore book told us what that meant) and if the Roach Emperor revolves around raw physical damage and adapting to attacks while evolving past its limitations (we didn't get to see the potential of it since Gregor was fighting with every inch of his life to kill himself, not to win) I'm not really sure how it'd go: on the one hand, Roach gets walled by the immunity, on the other hand, he could figure out a way around it and keep evolving until his attack somehow does black damage instead. What do you guys think?