Added FastAsyncWorldEdit support! you can now create schematics for arenas using worldedit wand and the command /sg createschematic
If an arena schematic is created and Advanced Rollback is enabled, then that schematic will be used to rollback instead of the traditional method of Copying the world folder and pasting it (Which does not work in all servers and is heavy on the server). You can read about the schematics feature in the overview page.