Rebattles show importance? What about the inteviewers u can battle them alot mega exploud & magnezone?
The battle maison owners can't mega too
So the aussie daddy doesn't want to show off his Mega Flygon in treehouse battles?
So atrler wallace who sometimes takes part in contests can't mega cuz they've already shown it off with his *****?
ORAS introduce a load of new features why don't they mega in those to show them off?
mega exploud & magnezone? 
