Arctic Ring

Ring, very Rare (requires attunement)

While wearing this magic ring, you have immunity to cold damage and difficult terrain composed of ice or snow doesn’t cost you extra movement.

Winter Magic. This magic ring has 3 charges and regains all expended charges daily at dawn. As an action, you can expend its charges to cast one of the following spells (spell save DC 17): ice storm (1 charge), cone of cold (2 charges), or wall of ice (3 charges).

Aura of Cold. As an action, you can speak the ring’s command word to cause the temperature to drop drastically around you for 1 minute. Any creature that starts its turn within 5 feet of you takes 1d6 cold damage. In addition, a sheen of slippery ice forms in any square you move through. The ice is difficult terrain and a creature that starts its turn there or enters the area for the first time on its turn must succeed on a DC 10 Dexterity saving throw or fall prone. The ice melts away after 1 minute. Once used, this property can’t be used again until the next dawn.