Any wish fulfillment fic where SI\OC just steamrolls the world with magic?

Straightforward crack-ish fic where dude or dudette has magic and lives his or her life as how they want it. Like, there is a big difference in power between their faction (if any) against say, westeros or essos. Really enjoyed Falling Shadows (star wars x game of thrones) and that one Harry Potter one where he lives beyond the wall.

Thanks!