Ring of Wizardry

Ring, varies (requires attunement by a wizard)

While you are wearing this ring, the number of spell slots you have available for a given level is doubled. The level is determined by the rarity of the ring.

Ring of…	Rarity	Spell level
Wizardry	Rare	1st
Greater wizardry	Very rare	2nd
Superior wizardry	Legendary	3rd