+4 Sorcery Points, +1 spell attack bonus and per short rest set the crown’s resistance to Acid, Cold, Fire, Lightning or Thunder.

Crown has 10 charges for spell casting (regain 1d8+1 per long rest): Magic Missile (1-3 Charges), Armor of Agathys (1-3 Charges), Spirit Gaurdians (3 Charges), Ice Storm (4 Charges), Sunbeam (6 Charges)

Notes: Bonus: Spell Attacks, Sorcerer