SnowElf Traits:

Ability Score Increase: Increase your Constitution by 2 and your Wisdom by 1. This replaces the normal ability score increase from the elf race.

Snow Walk. Snow and ice are not difficult terrain for you. Moving onto slippery icy does not cause you to fall prone.

Elven Weapon Proficiencies. Snow Elves are naturally proficient in light picks , War spears, longswords, shortswords, and longbows.

Cold Resistance. You have resistance to cold damage.

Fire Vulnerability. You take double damage if attacked by a weapon or spell dealing fire damage.

Snowy Step. If you are standing on a 5-foot square covered in snow or ice, you can use your bonus action to teleport to any other unoccupied 5-foot square covered in snow or ice within 60 feet of you. Once you do this, you cannot do it again until you finish a short or long rest.