A portable prison used by astral slavers, this intricate glass flask swirls with magical essence. When the flask is first discovered, roll a d6 to determine its inhabitant: 1-2) it is empty, 3) an elemental (roll for its type), 4) a deadly phantasm, 5) a rasan spirit, 6) an eldritch horror. Consult with the GM to determine the statistics of the flask's inhabitant, if any. If you know the true name of a being not from the material realm, you may imprison the named target by uttering its name in its presence. The target is entitled to a contested Sorcery check to resist, and the flask can hold a number of such targets (in separate chambers of the flask) equal to its strength.