Seal of Solomon

Wondrous item, legendary (requires attunement)

The Seal of Solomon is a ring bearing a hexagram pattern given to King Solomon of Israel by Yahweh. The power in this ring is said to hold sway over demons, spirits, and beasts.

Summon Djinni. While wearing the ring, as a ten-minute ritual you can summon a Djinni (CR 11). This djinni is loyal to you and lasts one hour before disappearing to the plane it came from. If the Djinni falls to 0 hit points, it returns to its original plane. Master of Demons. You have advantage on all attacks, ability checks, and saving throws against fiends.