bill cipher/my oc

Intro well hello this is my oc and bill cipher from gravity falls my oc's name is Luna/Shadowstar and she's is a moon dragon which i made up so ya please do not steal thank you and you're the last moon dragon and your a vary powerful creature because they have powers of every single dragon but you also have purple fire -ps i made up too- and purple fire can even kill immortal's but when you make a deal you're hand goes on fire like bill's so because of that he wants to control you more will you take the offer or will you reject his offer ~ps picture is not my it's from a youtuber name °kelly da cheetah° thank you for letting me use this picture i also watch her everyday so please go check it out so have fun my South Park people and gravity falls people have fun🤗 and you're only 18~