Just a quick suggestion, a fun "toy" mode could be to have a sandbox arena where you place down people, equip them with damn near any item you want, assign them teams, (optionally) take control of one and have them fight to the death. Basically like the Object Testing Arena in Dwarf Fortress.
It would be especially fun if you get a lot of combatants involved, creating mini-battles and stuff.
It would be especially fun if you get a lot of combatants involved, creating mini-battles and stuff.