The cold hardens your resolve with its icy bite. It chills you to your core, sharpening your spirit with strength beyond death. And so you continue to place one foot in front of the other in an endless march of death. Whether you can or cannot survive is irrelevant; you must proceed.

Origin Spells

Starting at 1st level, you learn additional spells when you reach certain levels in this class, as shown on the Origin Spells table. Each of these spells counts as a sorcerer spell for you, but it doesn't count against the number of sorcerer spells you know.

(For legal reasons, Armor of Agathys is not automatically available. Write a feat to give it to yourself.)

Permafrost

At 1st level, the freezing energy within your soul numbs the world around you. While you have neither armor nor a shield equipped and have temporary hit points, you gain a bonus to your AC equal to your Charisma modifier (minimum of +1).

Glaciate

Also at 1st level, the biting cold of winter makes survival as natural to you as breathing. Whenever you cast a spell that deals cold or necrotic damage, you gain temporary hit points equal to your proficiency bonus. These temporary hit points last for 1 minute.

Winter Thorn

At 6th level, your heart and body are both hardened by the frozen depths of your soul. You are immune to being frightened. In addition, when a creature within 5 feet of you hits you with a melee attack, it takes 1d8 cold damage.

Frostblight

At 14th level, your freezing attacks are so cold that they extinguish the flames of life. Once per turn when you deal cold or necrotic damage, you can deal additional damage of the other type equal to your Charisma modifier (minimum: 1).

Absolute Zero

At 18th level, you can turn those who approach you into a facsimile of death. As an action, you can force a creature within 5 feet of you to make a Constitution saving throw. On a failed save, the creature is petrified for 1 minute as ice instantly encases it.

Once you use this feature, you must spend 5 sorcery points or finish a long rest before you can use it again.