The jar of miasma is an item that can be obtained from using the unsired, dropped by the Abyssal Sire, on the Font of Consumption. Players have a 13/128 chance of receiving one when doing so. As an unsired is a 1/100 drop, this effectively makes the chances of obtaining a jar 1/984.
The jar can be used on a boss lair display in a player's Achievement Gallery to have a display of the Abyssal Sire. Doing so requires killing him at least once.
- ↑ Obtained from an unsired, which can only be dropped by the Abyssal Sire.
- This jar has a significantly higher drop rate compared to the other jars.