Elemental Bond: Ice

You form a symbiotic bond with a minor elemental of Ice: a native of the Frostfell, or the scion of spirits of air and water. The snow sprite sharpens your natural instincts and grants you a measure of influence over elemental cold. You gain the following traits:

• Your elemental hones your instincts, giving you proficiency in Wisdom (Survival) checks. In addition, when you make a Wisdom (Survival) check to track other creatures in icy or snowy terrain, you add your Charisma modifier to the roll.
• Your elemental fortifies your natural immune system. You have advantage on Constitution saving throws to avoid becoming poisoned, contracting a disease, and to overcome such condition. In addition, you age half as quickly as other members of your species.

• Innate Spellcasting: You learn one of the following cantrips: frostbite, ray of frost. Charisma is your spellcasting ability for this cantrip.
  You learn one of the following spells and may cast it at its lowest level once for free, regaining the use when you complete a long rest: fog cloud, hunter's mark, ice knife. Charisma is your spellcasting ability for this spell. You may swap this spell for a different one from the same list when you gain a level.