You can control the weather within 1000 miles of your location. Your precision on a small scale is not nearly as precise as that of an Airbender, but you can do powerful airblasts. You can form tornadoes or hurricanes on a whim. You could easily destroy society by yourself, but the only thing you could do against an Endbringer is make it sunny, which would stop Leviathan from using the rain. Otherwise, this power is useless against the Endbringers.