D&D 5th: Demon Tower of Madness
Ring of Wizardry
Silver sigils of stars, comets, and suns are engraved on this bone ring.
Crafting a ring of wizardry involves several astounding feats of magic now lost to academic spellcasters. A mage must grow a clone, invest the clone with the knowledge of magic, and harvest a finger from it. From this finger’s bones a ring of wizardry is carved. A story exists about the “Nine-‐ Fingered Mage,” a clone who escaped the complete ring-‐making process, but not soon enough to save every digit.
Property: If you are a mage, add one to the number of spell slots you have for each level of spell you can cast up to 4th level.