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call me autistic, but every pokemon should be able to mega evolve.
I know what the limitations of game design are, but technically if a handful of pokemon can temporarily get a power increase through some magic stones, every mon should
also regional variants. That's just how nature works.
Bouffalant is 100% a Tauros variant but regional variants were introduced only two generations later. Similar to gender on Nidorans.
Humans are just bad at classifying things and set standarts they later found out were wrong, but don't bother to go back and change.