Ouranite, Legendary
Aether ouranite has only been written of in ancient texts and those writings are inconsistent at best. It is reputed to be clear in color and to have a smell similar to burnt metal. Supposedly it can only be found floating in the upper reaches of the atmosphere, and once refined the smell disappears entirely, making it seem like nothing more than a bead of glass.
Armor – You become immune to all spells that deal damage directly to you.
Weapon – Once per day, any target you successfully hit must make a successful Wisdom saving throw with a DC of 25 or become unable to cast any spells until they have taken a long rest. This ability recharges at dusk each day.
Other – As an action you may activate this Ouranite to have all friendly creatures within 30 feet of you gain damage resistance equal to twice your character level.