Ring of Evasion

A simple silver ring that provides the wearer with supernatural evasiveness. Most rings are branded with a fist in the shape of a pistol, the trademark sign of The Handgun thieves guild. 
From the Dungeon Master's Guide: 

Requires Attunement

This ring has 3 Charges, and it regains 1d3 expended Charges daily at dawn. When you fail a Dexterity saving throw while wearing it, you can use your Reaction to expend 1 of its Charges to succeed on that saving throw instead.

Item type

Magical

Rarity

Rare