It really is sad that you can't use an elytra in Rivina battle zones. Elytras add a small amount of tactics to fights via debuff bombing and are just really fun to play around with regardless of the effectiveness. If elytra flight could be enabled in Rivina battle zones to match normal conquest that would be great. Just a little (I think) oversight in the coding of the no-fly zone of Rivina that I hope can be changed!