Potion of Spiritual Vision

This potion is made through various alchemical steps and magical touches in order to give those unable to wield magic the ability to see the unseen for a brief moment. A creature can choose to drink it and gain the effects of Truesight for 30 minutes. For the duration, the creature can notice secret doors hidden by magic, and can see into the Ethereal Plane, all out to a range of 120 feet.

*A creature with truesight can, out to a specific range, see in normal and magical darkness, see invisible creatures and objects, automatically detect visual illusions and succeed on saving throws against them, and perceive the original form of a shapechanger or a creature that is transformed by magic. Furthermore, the monster can see into the Ethereal Plane within the same range.