PopCultKid
EATER OF WORLDS & CHLDREN
Because recasts of it showing up on eBay would be my guess.
I'm sure there are but I don't pay attention to those. I forgot that it says "Only One" on the picture, so I realized later what he was talking about. Not sure what "Only One" is supposed to mean because I've seen several custom full figure Caesar out there (definitely done with original sculpts). It seems like he doesn't restock them anymore, maybe that's due to popularity.