Somewhere in your family tree lies an Elemental tied to the earth this has granted you a few benefits. 

• You can move across difficult terrain made of earth or stone without expending extra movement.
• While you aren’t wearing armor, you can calculate your AC as 13 + your Dexterity modifier. You can use a shield and still gain this benefit.
• You gain the Mold Earth Cantrip as well as the Earth Tremor spell. You can cast Mold Earth at will and Earth Tremor a number of times equal to you proficiency bonus. You regain uses after a short rest and can cast them with any spell slots you may have.