So i haven't drawn Meeiple before because I struggled to get him to look like and also I constantly worry he comes off as boring in design and other just in my head paranoia. Meeiple as a character holds a title as Beast of the In Between. He's not a exactly a fey, or a demon, or anything. He's a creature that lives and exists between spaces and concepts. As such his manor exists in a pocket dimension that is in between places and unable to be reached normally unless you know it's there. Meeiple is about 7 ft 2 and will shrink his height down when dealing with smaller species to stand out less. His big thing is collecting names and people so he can transform them using his tomb of reality bending paper. Meeiple can't say where of how he got the tomb. It seems to exist alongside him and will usually show up near by if anyone attempts to destroy the book. His desire to collect and transform is both a matter of personal fun but also sustenance. Meeiple 'eats' concepts and ideas from his victims which is why it almost always ends in identity death for those who encounter him. When he transforms someone into a chair the victim losses the concept of their own humanity. That said Meeiple needs a name and can't hold the transformation forever. Either the victim gets consumed by the void and is swallowed completely disappearing entirely or his enchantment unravels and wears off. The later usually doesn't happen but if it does it tends to be women who break free. For whatever reason if Meeiple doesn't turn his victim into a man the reality bending paper starts to unravel and the victim turns back to normal. The only exceptions are if the transformation is written out in the victim's own blood in which case its permanent. They will never turn back and can't be consumed into nothing. Meeiple suspects this has to do with the nature of his own perception. He desires masculinity and is compelled to seek it out but he can't conceive it. As something that eats ideas and constructs he effectively lacks the ability to organically completely form his own.
Functionally Meeiple is immortal in his pocket dimension, but his powers diminish and lose their potency outside. While they'll still work the effects can be undone and he can't fully eat and consume the transformee.
This is why Meeiple tricks people into his home and then eats them. He can best be classified as as an ambush predator who puts out lures in the forms rumors or little gateways so you can wander in. Otherwise he waits indulging himself in debased pleasures at home with his current meals. But he has been known to travel to worlds eating concepts and ideas just to mess with people its simply that he prefers not to since he has made a number of enemies. He doesn't really die but outside his home he can be sealed and transfigured if someone more powerful were to attack. While he lacks friends multiple people flock to his parties where he runs an auction where he sells various transformees and such to his guests who pay back in ideas or dreams and the like. It is highly advised to not enter Meeiple’s realm as while he may not immediately turn you into furniture or something alike everything within his manor slowly finds their mind consumed by lust or intense hunger. Occasionally the sheer radial energy of what Meeiple is starts to transform people inside.