Boy that sure is Emrakul.

[url=https://whc-cdn.games-workshop.com/wp-content/uploads/2019/01/40kGSCLore-Jan29-PatriarchArt2vr.jpg]Here [/url] is my design for my Creature. What I'm conceptualizing is a psychic stealth-predator that can forcibly implant and mutate other organisms into smaller replicas of itself or more specialized monsters, which it keeps under telepathic control. So like a slow and secret corruption/infection meant to gradually subsume the native lifeforms.