The Greater Magic circle is built in the Throne Room of a player-owned house. It traps players inside if they are standing on the floor space when the lever is pulled.
It has the “Release”, “Drop into oubliette”, “Expel from house”, and “Teleport to…” options. This last option will teleport characters inside the cage to a location outside the house depending on the locations the owner’s teleport portals of her or his Portal Chamber lead to, excluding the Annakarl Teleport, as that leads players to the Demonic Ruins in the Wilderness.
As guests of the house have a tendency to teleport anyone inside the cage, house owners may choose instead to put a lesser magic cage in as it can only hold or drop players into the oubliette below.