User blog comment:Drackal 99/Hi I'm new/@comment-28836419-20181124151552

First of all, welcome. Now for what you asked, you can write your own stories and make your own chars or even make a fanon version of characters from the series. The power of a char of yours, depending on the story most of the times, can even be gildarts level of magic power and more. Also, you cannot make a char that is related or has a relationship with any of the main cast. I hope i helped you.