Tadalf's Challenge Room

Publisher's blurb: Imagine you're in a room where every tile has a different magical effect, well stop imagining it because it's a reality! In Tadalf's Challenge Room your party will have to face the random effects that go off whilst fighting an immortal gladiator, will they succeed? Tadalf's Challenge Room is a small module designed to be added to an adventure at a moments notice, you need only spend a few minutes reading through the guide's notes on how to run it and go for it. This room is best implemented using a whiteboard grid or something similar though a simple map with coordinates can also be used.