Potion of gaseous form

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.

Notable Owners
Pizentios, a vile necromancer from Zakhara, carried a potion of gaseous form.