So for MTG I have the “animated actors AU”. Basically its like a modern au except all the planeswalkers, legendary creatures and etc. live in a modern world where MTG exists. They one for card pictures and play their roles in the novels, comics, and Uncharted Realms, which in this AU are full-length movies and short films. They look and biologically “work” just like they do in canon (for example, Ashiok floats and has half a head and smokiness).
Really large creatures aren’t actually big, they’re just made to look that way on film; Bolas is human sized, Silumgar and the like are dog sized.
There exist two Tezzerets - one who played the Seeker and one who now plays Agent of Bolas.