>>21713531It's just a feeling sort of thing. I don't know how to explain.
For me, it tends to be that one Pokemon that whenever something goes wrong in battle you send out cause you really trust it. You know, the one mon you always bring along with you no matter what.
That has always been my bro Riki. Never lets me down.
Don't stress about it too much, anon. You can't force a bro. In reality, I have over 10 favourite Pokemon that I can't choose between.