Ok bros, let's get creative here. I wanna suggest a game:

Imagine you are inside the pokemon world, and, after going through a long trip acquiring experience and, finally, beating the elite four, you are offered a job as a gym leader in a continent where the gym-league system hasn't been implemented. Therefore, you can pick any type you want, your first match team (three or four pokemon with moderate level, sometimes with not-fully-evolved pokemon), your rematch team (six fully-evolved pokemon), your gym aesthetics, obviously your own aesthetics and, because this continent is "equatorial", any climate and environment to place your gym in.

Also, to give some movement to the thread: ¿how would you beat the gym posted before you?

Now, what's your call?

Have fun!