Essence of Eternal Frost

Essence of Eternal Frost is a Sorcerer
bloodline that is focused around the influence of
powerful cold magic. Somewhere in your family
tree someone meddled with the elemental force
of unstoppable oppressive cold. Whether it was
by dipping into elemental magic, a pact with a
powerful creature closely tied to the cold, or
someone in your family tree “intermingled”
with a creature affiliated with ice; someone
passed down an essence of that very same cold
magic and that underlying magic has awoken in
a Sorcerer of this bloodline.

Cold Blooded

When you select this bloodline at 1st level, the blood that runs through your veins grows colder and provides you a more heart resilience to cold damage and cold climates, and your connection to the cold magic within is always at the edge of your fingertips. You can draw on this connection to increase your effectiveness with cold spells.

You gain resistance to cold damage, and you can survive comfortably in cold climates, such as high altitude mountains or frozen tundra.

Whenever you cast a spell that deals cold damage, you may add your charisma modifier to the damage it deals on a hit.

Jagged Rain

Starting at 6th level, your control over cold becomes more tangible. You can feel the moisture in the air and manipulate it to harm others; you gain the ability to freeze lingering water vapor in the air and rain it down on your enemies.

As an action on your turn, select a 10 ft cube within 30 feet of you. Each creature in that area must make a dexterity saving throw. On a failed save, a creature takes 2d6 cold damage and their movement speed is halved until the end of their next turn. On a successful save, the creature takes half damage and suffers no other effect.

You may use this feature a number of times equal to half your charisma modifier rounded up.

This feature recharges after a long rest.

The damage of this ability increases by an additional 1d6 at sorcerer level 14 and an additional 2d6 at sorcerer level 18 for a total of 5d6.

Frost Touched

At 14th level, you can temporarily freeze water around your footsteps giving you the ability to walk on water. You can also stand still on water with no fear of being submerged as the ice stays solidified and maintained while you hold position there. You can choose not to use this feature if you wish to submerge yourself of your own accord.

This feature can only accommodate you, and only if you are not over your encumbrance weight.

Eternal Cold

At 18th level, the bond you have with your bloodline is ever-present and complete. You have a connection and affinity for cold so deeply that your skin turns a pale blue and ice crystals form all around your exposed skin.

You gain immunity to cold damage, and now ignore any difficult terrain imposed by cold sources.

You treat and creature that is not immune to cold damage as though they were vulnerable to it instead.

Additionally, your frosty exterior provides a deterrent to enemy attackers. When you are hit by a melee attack, you can choose to deal 10 cold damage to the attacker.