Armor of the Glaciered Giant

Requires attunement, Very Rare Heavy Armor
While attune to this item, you gain an additional +1 to your ac, as well as resistances to cold damage. This armor is built with 3 charges and as a bonus action, you can expend a charge activate this armors special effect. Doing so allows you to gain immunity to cold damage as well as being able to deal 2d6 cold damage whenever you make a weapon attack, but you become vulnerable to fire damage. This form only lasts about a minute and you can regain a charge on sunrise.