The following is a list of the various sizes of soul gems and creatures exclusive to Tribunal that will fit in them (creatures will fit into higher quality soul gems as well if you don't have the correct type). All but grand soul gems can be bought or found on random monsters throughout the world, while grand soul gems can only be purchased from Elbert Nermarc, a vendor in the Craftsmen's Hall in Godsreach. Note that not all variants of monsters are included in the table below. Creatures that have no soul are excluded as well.
- ^ a b The Rat and Scrib refer to those available as pets from Rerlas Mon.
- ^ The only Verminous Fabricants to possess souls are those created by the machine in the Dome of Serlyn, located in the Clockwork City.