Frozen Soul

Your inner magic comes from the Elemental Ice. Many with this power can trace it back to some ancestor barely surviving a blizzard or other extreme cold weather by becoming one with the Absolute Zero.

Cold as Ice

1st-level Frozen Soul feature

Starting at 1st level, you can speak, read and write Primordial, as well as its dialects, mainly Aquan and Auran. Additionally, you get no penalties from moving through slippery terrain due to ice or frost. Finally, you have advantage when rolling saving throws against the effects of adverse cold weather conditions.

Crystal Heart

6th-level Frozen Soul feature

You gain the ability to withstand energy that emulates the freezing elements of the Absolute Zero. You gain resistance to cold damage. Cold spells that you cast ignore resistance to cold damage.

Blizzard Fury

14th-level Frozen Soul feature

When you cast a spell that deals cold damage, magic erupts from you in sharp ice flakes and temperature drop. Creatures within 10 feet of you take cold damage equal to your sorcerer level unless they succeed in a Constitution saving throw. Additionally, when hit by a melee attack, you can use your reaction to deal cold damage to the attacker. This damage equals to your sorcerer level, ignores resistance to cold damage and reduces the speed of the target in half until the end of their turn.

One With the Absolute Zero

18th-level Frozen Soul feature

Once you reach 18th level, you gain immunity to cold damage. Spells you cast that deal cold damage treat immunity to cold damage as resistance to cold damage instead.