High level Alchemy items used for creating elemental Anima. Dropped from Empties within Promyvion - Dem, Promyvion - Holla, Promyvion - Mea, and Promyvion - Vahzl. Keep in mind that this guide pertains to "Remnants" of memories only, and not "Clusters". Clusters drop in the treasure pool after ENM battles withing the Promyvion areas.