>>21382779>Eevee CAN evolve into so many different thingsWhose to say it couldn't evolve "normally"? Or that a Normal type evo would still count as a mutation, possibly requiring an item or location to evolve.
I'd personally like a Mega Eevee that has the same base stat as the eeveelutions, is Normal typed and has Color Change (or Protean).
If Eevee is about evolving into different forms through multiple methods, it doesn't seem so farfetched that it could be affected by Mega evolution.