I think there should be an event where you battle Ash's Greninja with your Greninja(if you have one)
- Your Greninja should have max happiness
- You have to defeat Ash's normal greninja first then you get all your health back and now you have to face his ash-greninja
- if you defeat them both you get a water shuriken(if it is added to the game)
-then you can make it ash-greninja with the shuriken but not mega evolve
- you will go to the place where you evolve but instead of saying it mega evolved it would say it activated battle bond
Thats my idea and please reply with your thoughts on my idea