Belt of Arctalian
This leather belt is made from the underbelly of a white dragon and has a dragon's head for the buckle. Snowflakes appear around the wearer whenever they move. When you fail a saving throw to avoid a breath weapon attack, you can use your reaction to succeed on that saving throw instead. While wearing this belt, you have resistance to cold damage. In addition, you and everything you wear and carry are unharmed by temperatures as low as −50 degrees Fahrenheit. Curse. This belt is cursed, and becoming attuned to it extends the curse to you. As long as you remain cursed, you are unwilling to part with the belt, keeping it within reach at all times. This curse does not effect dragons or dragonborn. While cursed, any surface you walk on is treated as ice, making it difficult terrain. Whenever you are subjected to a breath weapon attack you automatically fail your saving throw and cannot succeed through other means.