Opinions on this Ash-greninja evolution?
Not design wise but the concept itself.

To be clear I just want to discuss the concept and not Ash-greninja itself in the anime.

What we know now is that

>The trainer and the pokemon must have an extremely high bond
>It has only happened two times both being a Greninja
>It's implied that Froakies were born to be able to achieve this evolution and is the reason why it's so extremely rare even though many trainers have a high bond with their Greninja
>As strong as a mega evolution
>The trainer can see through the pokemon's eyes and command extremely fast and efficiently.
>The trainer itself feels the pain from attacks the pokemon is hit with

I don't really see how they would implement it in the games, if this concept shows up at all.

It's just a mega evolution without items that can act faster than other pokemon and makes the trainer feel the attacks. Literally only making it stronger part would actually work in the games. Make it act faster could be in it like the evolution being able to always hit first or hit two times in a row but that would be cancer. Trainer feeling its pain wouldn't make any fucking sense.

As said before, we don't know much about this "synchro evolution" but I can't see them use it in the upcoming games. What's your opinion.