I'll take you up. I've got two battles, but one of them is kinda inactive...
2v2. Gentlemen's Agreement on banned moves (If you think it's broken, don't use it. If the opponent uses it, it's fair game.) DQ time is a week.
Arena will be a frozen lake. Some moves may cause the ice to crack, in which case, the ref's ice pokemon will refreeze it after 5 actions. If you are under the water at that point, you'll need to make your way out by breaking the ice again. (Examples of moves that could crack the ice include fighting moves used to do so, or fire moves in general.)