Potion of Gaseous Form
When you drink this potion, you gain the effect of the gaseous form spell for 1 hour (no concentration required) or until you end the effect as a bonus action. This potion's container seems to hold fog that moves and pours like water.
A potion of gaseous form was an magic item capable of turning the imbiber into a cloud of gas.
Powers
When consumed, this potion would transform the imbiber's body, along with all of their carried equipment, into a transparent and insubstantial sluggish cloud of gas. While in this form the imbiber could only be harmed by magical fire, lightning, or whirlwind attacks. The gaseous form could squeeze through anywhere that was not air tight. These effects last for 40–90 minutes.
Potion of Gaseous Form
Potion, rare
Minor tier
Item type
Consumable, Magical
I think this was the potion from Jacoby Drexelhand's stuff in Session 05: New Member Report where The Mighty Menagerie looted his desk and chest. Currently: In the Bag of Holding held by Sas W.T. Rayce