Amulet of Anubis

The Amulet of Anubis, which gives anyone who wears it vast magical abilities
A beam of crackling energy streaks toward a creature within range. Make a ranged spell attack against the target. On a hit, the target takes 3d10 force damage.

While wearing the Amulet of Anubis, you are hidden from divination magic. You can't be targeted by such magic or perceived through magical scrying sensors.

While wearing this amulet, you gain a +2 bonus to spell attack rolls and to the saving throw DCs of your spells. 

Notes: Bonus: Spell Attacks, Bonus: Spell Save DC, Eldritch Blast: Bonus Range, Deception, Jewelry