At last!
Au Coup Par Coup, Chapter 13, "Welcome to the Rouge" is live (and has been for a while!):
http://archiveofourown.org/works/7262536/chapters/28931625https://www.fanfiction.net/s/12009986/13/Au-Coup-Par-Coup>>34177707Only flesh out combat for as long as you need it be present, and do not attempt to wring more combat out of a chapter than is needed or you will bore your reader (or tax yourself for no reason). You should also avoid underselling combat and trying to just skip past it. It's happening for a reason, and it's a major part of pokemon - show it off, let us see how it is you're handling things, and give the reader the opportunity to get a feel for the kinds of rules that govern the world you're writing about.
How much description you use is also a factor in this, as worlds where combat is pretty standard/faithful to the games is not likely to do much more than describe attacks and effects. If you're opting for something a bit more realistic, something a bit darker, or something more fantastic, then the descriptive elements you present will flavor your combat and help set it apart from others.
Scale for fights is an important factor to consider as well, as huge fights require you to either make sections dedicated to individual groups of fighters or to take a more general approach. I stick to small scale, so I can't offer much input here, sorry to say. My best offer for large scale fights is avoid jumping around erratically unless aiming for chaos.
