Ever wanted to add a legendary artifact to your campaign, but you were worried about PC’s getting their hands on it?
Or you put the Legendary item in your game and the PC’s already managed to get it?
What to do, and how to fix it.
Have a large room that elevates either up or down when triggering a trap. The floor can bring the players to new levels, where a mighty beast roams, or the floor flattens the players into the ceiling or drop into a pit of lava.