So some buddies and I are plan on doing a one-shot arena style combat with level 20 Gesalt characters. All the others guys playing are considerably more experienced than I am, so I'm coming to you guys.
All official Pathfinder material is good to use, the only real rule is that you can't be a race that requires level adjustment. As stated above, this is gonna be an arena style combat event, so it needs to be able to handed multiple PC characters.
All help is welcome and appreciated, thank you very much.