You get +2 to your constitution score, and +1 to your charisma score.

You get darkvision in a range of 120 feet.

You are immune to the petrified condition.

You can burrow through nonmagical, unworked earth and stone. while doing so, you don't disturb the material you move through.

When you die, stones fly around you for a couple seconds, before exploding. Every creature within 5 feet of you takes 1d4 bludgeoning damage.

Your innate spellcasting ability is Charisma(save DC 8 + proficiency + your charisma modifier, spell attack bonus is proficiency + your charisma modifier  ). You have the following spells, witch require no material components.

3/day each: Detect magic, Stone shape, Passwall, Move earth

1/day each: Conjure elemental(earth elemental only), Gaseous form, Invisibility, Wall of stone

You have advantage on strength and dexterity saving throws made against effects that would knock you prone.

You can make an unarmed strike. The damage is 1d8 + your strength modifier bludgeoning damage on a hit.

You gain proficiency with mauls.

You can cast the wish spell. You must finish 4 long rests before you can cast it again.