Earthly bloodline

Your blood and soul are connected to the ground around you allowing you to become able to control and mold it at your will. 

Earthly Magic

At 1st level, you choose one type of dragon as your ancestor. The damage type associated with each dragon is used by features you gain later.

Earth magic

Sorcerer Level	Spells
1st	Magic stone, Mold Earth,
3rd	Barkskin, Earthbind, spike growth
5th	Erupting Earth, Meld into stone
7th	Stone shape, conjure minor elementals
9th	Transmute rock, Wall of stone,

Rocky Resilience

As magic flows through your body, it causes physical traits of your elemental ancestors to emerge. At 1st level, your hit point maximum increases by 1 and increases by 1 again whenever you gain a level in this class.

Additionally, parts of your skin are covered by a thin sheen of rock-like armor. When you aren’t wearing armor, your AC equals 13 + your Dexterity modifier.

Tougher skin

Starting at 6th level, you gain resistance to either bludgeoning, piercing or slashing damage. Using a sorcerer point you can cast mold earth and create half cover in front of you. 

Earth Tunnel

At 14th level, you gain the ability to teleport to any spot in a 120 feet range that is connected by earth. (I.E cannot go in air, through water, over gaps.) you can use one sorcerer point to make the area around you in a 30 feet radius difficult terrain. 

Unbreakable

Beginning at 18th level, using 4 sorcerer points your body becomes covered in impenetrable stones making your immune to bludgeoning, piercing and slashing damage. Resistance to all other damage for 10 minutes. Your hands also become dangerous blades allowing you to use them as powerful weapons.