This ring is linked to one of the four Elemental Planes. The GM chooses or randomly determines the linked plane.
While wearing this ring, you have advantage on attack rolls against the elementals, and they have disadvantage on attack rolls against you. In addition, you have access to properties based on the Elemental Plane.
The ring has 5 charges. It regains 1d4 + 1 expended charges daily at dawn. Spells cast from the ring have a save DC of 17.
You can expend 2 of the ring's charges to cast dominate monster on the elemental type. In addition, you have resistance to damage based on the type. You can also speak and understand Ignan.
If you help slay an elemental of that type while attuned to the ring, you gain access to the following additional properties:
You are immune to elemental damage of that type.
You can cast the following spells from the ring, expending the necessary number of charges: burning hands (1 charge), fireball (2 charges), and wall of fire (3 charges).