Ring of Cymede

Ring/Story, artifact (requires attunement by a creature that worships Keranos or a god of elemental power)

Price: 450,000-500,000 gp | medium sentimentality

This ring belonged to Cymede, queen of Akros, before her ascension into Nyx to serve Keranos, god of storms. While you wear the ring, you occasionally have visions about events that will occur. The visions may be so vague you only understand them in hindsight or so clear you feel you’re watching events unfold before you. The only common theme is that any vision you see can’t be changed—events will unfold exactly as foretold.

Paid

You gain the following attributes when wearing the ring:

Skilled Tactician. You gain advantage on Wisdom (Insight) checks to detect deception.

Master of Elements. You have resistance to fire, cold, lightning, and thunder damage. You gain a +3 bonus to attack rolls or DC to save when casting spells that deal fire, cold, lightning, or thunder damage.

Overpaid

While you wear the ring, you can lose a quarter of your maximum hit points to cast the conjure elementals spell with the modification that the spell doesn’t require concentration and the elemental can’t become hostile toward you.

Destroying the Ring

You can’t destroy the ring so long as Cymede or her spirit survives, but Cymede takes the ring from you if you help her reunite with Anax. In return, you receive the Ring of Promised Reunion.

Story

Unlike the descriptions for the items in this supplement, this section is intended for the DM’s eyes only. Potential spoilers follow for players. Continuing the story told under the Ring of Anax entry, Cymede’s ability to foresee the future showed her an eventual reunion with Anax. Should you wish to pursue such a storyline, the character who attunes to the ring sees a recurring vision of that promised reunion. The character senses great divine wrath accompanying this vision, as Keranos doesn’t wish to lose Cymede, but some destinies are greater than even the gods. If Anax has relinquished possession of the Ring of Anax, the visions drive the character to obtain it.

Source: The Gray Merchant of Asphodel