Magic crystal bottles

A bottle made of magic crystal, in which can store a part of your spirit or a little bit of a Deumvor, so that it can be used later. A soul is needed to store that type of magical power, but usually the soul of a smaller animal will suffice. Magic crystals are made and sold all over Inonna in all shapes and sizes since they are vital in a lot of magic practice. A magic crystal is made when ice, a Deumvor and blood from a dead creature is combined