So if I were to make Subaru mega Evolve or even have a battle bond, would it look like this???

Battle bond Pikachu

Mega Evolution Pikachu.

Now someone recommended that Subaru should just evolve into a Raichu temporarily or mega evolve into a mega Raichu. I like Raichu but I can't figure out how that would would without a lightning stone.

But then I learned about Gorochu, which was going to be the final evolution stage for Pikachu but it was scrapped. Here's what Gorochu would have or could have looked liked.

So I need to know, IF Subaru mega evolves or does a battle bond, make him mega evolve into a Gorochu? Make him temporarily evolve into a Raichu and mega evolve into a mega Raichu during the heat of a battle? Or make him Mega Evolve while still being a Pikachu??? Or what about the battle bond??? I'm curious.

And yes I looked up a Mega Evolved Raichu