His deal was that he’s supposed to be this ancient greek wizard who messed up some experiment and ended up dragged into in one hellish stone desert world called Erem, a world with no color, and full of eldritch nonspeaking demons. (some images: 1 , 2 , 3 , 4) He managed to find a door back home, 70 years later, but at that point living there for so long has changed and replaced his entire body, leaving him as this shapeshifting mass. Every now and then he’s banished from his home world by mages and then again needs a long time to find his way back. He checks himself in mirrors a lot, because his greatest fear is forgetting how he used to look, back then when he was human, and how to shapeshift himself into something that resembles that accurately. His sense of taste is now kinda alien too, so he will drink whole gallons of apple vinegar at once or crave the weidest stuff from raw potatoes to candles, curtains or coins. Pretty much everything except for salt.