You’re a big shot trainer going to open your own gym. What will your theme be?
Personally, I’d go with a haunted house for the gym. Fake ghost pokemon props giving ppl jump scares, mixed in with real pokemon. Except all my pokemon would be fighting type pokemon dressed up like ghost type pokemon.
Ash: “Haha oh what a jump scare! That’s a really fake looking Gengar puppet.”
“Oh now that one looks more like a Gengar.”
Hitmonchamp uses Mega Punch. It’s super effective. Ash gains concussion.


My gym would start with a trainer having the latest generation Pokemon, then each one after would have ones from the previous generation.
Once you’ve gone through all generations and get to me, my team would be one high level Pokemon spamming its strongest move, and any time it got to red health I’d swap to a level 10 Pokemon that only knew HMs while I full restored my high level one.
Swap to the lvl 1 Rattata with Focus Sash and Endeavour and teach the challenger FEAR.