Child of Ugranathr

Your innate magic comes from the venom of a creature older than the Prime Material itself, an elemental serpent of earth called an ugranathr. You might have fallen into one’s lair when a mineshaft collapsed where, for good or ill, it used its venom to strengthen your body to bring you back to this world. Perhaps you received a vial of from a hag or medicine woman that promised the fortitude of mountains if only you imbibed its contents. No matter your origin, since that day even the soil of a field whispers to you and the hammer of the forge reminds you of the calloused hand that last held it.

Elemental Resonance

Starting at 1st level, even the rumblings of the stone carry meaning. You can speak, read, and write Terran.

Additionally, you gain the ability to sense the echoes of earth’s recent memory. As an action, you can spend 1 sorcery point while in contact with a stone, metallic, or crystalline object or surface to learn the following information so long as it occurred within the last hour:

If it is an object, when it was touched and the feeling of that touch. You can also estimate the object’s worth with relative accuracy.

If it is a surface, when a creature passed by it along with that creature’s gait and speed, and a rough approximation of the creature’s weight and size. If multiple creatures passed by within the hour, you learn this information for each creature.

Veins of Earth

Starting at 1st level, the fortitude of the earth courses through your veins. You hit point maximum increases by 1 and increases by 1 again whenever you gain a level in this classs. Additionally, as a bonus action, you can gain a base AC of 13 + your Constitution modifier if you aren’t wearing any armor, and your skin becomes stony, crystalline, or metallic in appearance. This effect lasts until you end it as a bonus action, you are incapacitated, or you don armor or use a shield.

Spawn of Ugranathr

At 6th level, you channel the venom of the earth serpent that flows through you to summon an elemental. As an action, you can expend 3 sorcery points to create an Elemental Adder. See below for the Elemental Adder’s statblock, and it has the following changes:

It appears with temporary hit points equal to half your sorcerer level.

If it ends its turn more than 30 feet away from you, it takes 5 damage that cannot be reduced in any way.

The elemental adder appears in an unoccupied space within 30 feet of you. Roll initiative for the snake. The snake disappears if it is reduced to 0 hit points or after 5 minutes.

Return to Dust

At 14th level, you further attune with the element of earth and are now able to pass through it at will. As a bonus action, you gain the ability to pass through nonmagical, unworked earth and stone until the beginning of your next turn. While doing so, you do not disturb the material you pass through. While you are inside an object in this way, you cannot see or breathe. If you begin your turn inside an object, you take 5 damage that cannot be reduced in any way.

Soul of Stone

At 18th level, your essence and the earth’s become the same. You gain the Earthglide feature and no longer have the need to breathe. Additionally, you gain Tremor Sense to a range of 60 feet.