Initiation Time: 1 action
Range: Touch
Duration: Concentration, up to 8 hours
You step into a stone, earth, or rocky surface large enough to fully contain your body, melding yourself and all the equipment you carry into the earth for the duration. Using your movement, you step into the stone at a point you touch. A Wisdom (Perception) check against your ki save DC is required to notice your form melded with the earth.
While merged with the stone, all Wisdom (Perception) checks are made with disadvantage. You can move along earth and stone, remaining hidden and melded with the earth, although it counts as difficult terrain if you do move through solid stone. As a bonus action on your turn, you can escape or rejoin the earth.
Minor physical damage to the earth doesn't harm you, but its partial destruction or change in its shape (to the extent that you can no longer fit within it) expels you and deals 6d6 bludgeoning damage to you. The earth's complete destruction (or transmutation into a different substance) expels you and deals 50 bludgeoning damage to you. If expelled, you fall prone in an unoccupied space closest to your current location.