Phase 1

Room-to-Room - Changing mazes like the water maze

Room-to-Item - Some rooms create/modify/allow certain items?

Room-to-Player - Some rooms can remove items from players for example

Room-to-Monster - Monsters created in rooms?

Room-to-Spells - rooms could nullify, change, or improve spell effects?

Monster-to-Monster - have monsters fight each other?

Monster-to-Player - Monster attacks

Monster-to-Item - Monsters collect and drop items

Monster-to-Room - Monster looks in room(s) for players and other monsters

Monster-to-Spells - Monsters can cast spells

Item-to-Item - Player sword hitting other players armor?

Item-to-Player - Give/take commands

Item-to-Monster - monster/shop stocking

Item-to-Room - Items drop to ground or disappear

Item-to-Spells - items can be improved/degraded, or trigger spells

Player-to-Player - Chat, Look, combat

Player-to-Monster - Look, combat

Player-to-Item - wear, arm

Player-to-Room - look, move

Player-to-Spells - cast

Spells-to-Spells - Air attack spell vs airshield spell effects?

Spells-to-Players - like Airshield

Spells-to-Items - like Starsteel

Spells-to-Monsters - Attack spells

Spells-to-Rooms - Area effect spells