Earthheart Sorcerer

Your innate magic comes from connection to the Elemental Plane of Earth.  You might be a mortal descendant of a dao or perhaps a distant ancestor made a pact with the primordial forces of that plane.

Elemental Ancestry

At 1st level, you learn the Mold Earth cantrip. This counts as sorcerer spell for you, and does not count against your number of sorcerer spells known.

You can speak, read, and write Primordial. Primordial is a guttural language, filled with harsh syllables and hard consonants.

Stone Fists

Your unarmed strikes deal 1d4 bludgeoning damage. This damage increases as you gain levels in this class: 1d6 at 6th level, 1d8 at 14th level, 1d10 at 18th.  When you attack with an unarmed strike, you can use your Charisma modifier, instead of Strength, for the attack and damage rolls and the attack counts as magical for the purpose of overcoming resistance and immunity to nonmagical attacks and damage.

Starting at 2nd level, once per turn when you hit a creature with an unarmed strike, you can spend up to 4 sorcery points to deal additional bludgeoning damage to the target. For each point spent in this way, you deal one extra die of damage: 1d4 at 2nd level, 1d6 at 6th level, 1d8 at 14th level, 1d10 at 18th.

Additionally, your skin is unnaturally hard. When you aren’t wearing armor, your AC equals 13 + your Dexterity modifier.

Aspect of Stone

Beginning at 6th level, you can channel your innate magic to harden your skin against injury.

When you take damage, you can use your reaction to spend one or more sorcery points. For each point spent, roll 1d8. Add your Charisma modifier to the number rolled, and reduce the damage by that total.

As a bonus action, you may spend a sorcery point to gain 1d8 plus your Charisma modifier temporary hit points.

Elemental Form

At 14th level, you can use your action to magically transform into an earth elemental. You can use this feature once. At 18th level, you gain an additional use. You regain expended uses when you finish a short or long rest.

Indestructible

At 18th level, you gain resistance to piercing, slashing, and bludgeoning damage from non-magical effects. Your hit point maximum increases by an amount equal to twice your character level. Whenever you gain a level thereafter, your hit point maximum increases by an additional 2 hit points. You gain a +1 to your AC and +2 to all Constitution Saves.