The Shard of the Shattered Will is a finger-length cylinder of rough, clear, colorless glass. When infused with 10 motes and with the light of a sorcerer's anima summoning a demon, it may be used to draw the ritual circle for that summoning. The resultant circle (which is made of blindingly concentrated anima-light; don't step in a Dragon-Blood's circle!) allows the sorcerer to add her Occult rating, with relevant specialties, to the spell's [Essence + Willpower] roll.