I have an idea, which by the way would be very useful to me ...
- MONSTERS BATTLE ARENA: It would be a Minigame.
A queue where players wait their turn to play until the GM pull on each side (each row) by a control lever.
When pulled, each player would be teleported to one side of the arena, where there would be a lever, used to summon monsters. After GM use the lever again, the game would start, and each player could use the lever to summon his monsters, with the maximum of mosntros each could summon was configurable (preferably 4 to better functioning). Random monster configured in script.
The mosntros be summoned into the arena, and each player attack the opponent's sumons where anyone who kills all of the other before sumons win.
Details: Players will not be able to attack (stand outside the arena).
The rewards could be configured according to the desire ...
If you like the idea i'll post an example of map.