Hmm. Making Pokemon battles realistic in a satisfying manner is... very problematic, now that I think about it.

Mostly, what it seems to me that would do is make [i]various[/i] types of Pokemon completely unbalanced. Psychics have already been mentioned and the nerf discussed, but what about Electric, or Fighting, or (god forbid) something like Onix or Steelix? How superpowerful do we make them? If they're all completely nerfed, it, ironically, makes the setting less realistic...

So, are we more married to realism, or to "fairness" in Pokemon battles? (Basically, lore vs. game mechanics)