Elementai Crystal: The rare and extraordinary Elementai Crystals store the essences of sentient spirits that control the flow of magic from the other planes to the material plane. They serve not only as conduits of magical power, but as administrators of the Laws of Magic. These artifacts are often used to power various magical devices or as material components or focuses for powerful spells. Wands, staves, swords, daggers, and a variety of other items all can be crafted with the addition of an Elementai Crystal that grants it a particular power. An Elementai Crystal contains charges of either arcane or divine magical power. A wielder of an item so enhanced who has prepared or readied spells of the type of magic contained within the Elementai Crystal is able to cast those spells using the magical energy stored within the Elementai Crystal. Doing so expends a charge for each level of the spell cast, instead of expending the spell slot as normally required. An Elementai Crystal can be recharged by expending spell slots of the appropriate type of magic, in which case it gains charges equal to the level of the spell slot expended, up to a maximum number of charges equal to the Elementai Crystal's weight in carats.
Price: 100 GP per carat + 100 GP per charge.