Burrow

A willing creature you touch has their body modified to allow them to burrow through solid earth and snow, though not through stone, metal, or other solid materials.

The creature gains shovel-like claws; the creature deals 1d6 slashing damage with their unarmed strike, unless their unarmed damage die was higher. The creature gains a burrowing speed of 30 feet, leaving a tunnel behind that can accommodate a Medium or smaller creature moving at half speed; the burrowing creature can move at half their speed to create a wider tunnel allowing for a Medium creature to pass through normally.