Winter Elves (5e Subrace)
From D&D Wiki
Black skinned and white haired, these elves are well suited to the arctic deserts of the world.
Ability Score Increase. Your Charisma score increases by 1.
Arctic Runner. You have advantage on saving throws against exhaustion.
Snow Walker. You are resistant to cold damage.
Snow Soul. You know the ray of frost cantrip. Charisma is your spellcasting ability for it.