Aegis

Armor (shield), legendary (requires attunement)

The aegis is a shield belonging to Zeus. Athena made the aegis from the hide of the giant Pallas, whom she killed in the war against the Giants. In the Iliad, Apollo used the aegis to rout the Greek army. While holding this shield, you gain a +1 bonus to AC.

You also have immunity to poison damage, the poisoned and petrified condition, and all gaze attacks are reflected back at the original source.