Potion rare
This reflective potion resembles a liquid mirror but when it is held still it shows visions of far off planes and worlds beyond the prime material plane. If you drink this potion, you are immune to all environmental effects of other planes, including those that warp your mind or body over time. Additionally, you cannot be banished or transported to another plane against your will. This potion lasts for 7 days or until it is dispelled.