Me and my friends thought up an arena, right in the middle of Lith harbor, where players could enter, find a room according to their level, see who they were fighting, equip their best stuff (that they had), and fight in a sort of boxing ring with two small platforms on either end.
It would cost 2k for each match you enter, so no complete noobs but no dying for free.
The players would have their hp and mp mutiplied by 5 just for the battle.
They could choose for pots or not, and a set amount of rocks (summoning and magic).
The player who won would get exp (oppenent’s lv x 50), the entry fee jackpot, and a win point on their record card.