A figurine of wondrous power is a statuette of a beast small enough to fit in a pocket. This polished obsidian horse can become a nightmare for up to 24 hours. The nightmare fights only to defend itself. If you have a good alignment, there is a 10 percent chance each time you use the figurine that it ignores your orders, including a command to revert to figurine form. If you mount the nightmare while it is ignoring your orders, you and the nightmare are instantly transported to a random location on the plane of Hades, where the nightmare reverts to figurine form. Once it has been used, it can't be used again until 5 days have passed.