Earth Glide. The dirt rat can burrow through nonmagical, unworked earth and stone. While doing so, the dirt rat doesn't disturb the material it moves through. Malleable Form. The dirt can enter a hostile creature's space and stop there. It can move through a space as narrow as 1 inch wide without squeezing and cannot be grappled or restrained.
Maul. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 4 (1d4 + 3) slashing damage. Blinding Breath (Recharge 5-6). The dirt rat exhales a 15- foot cone of blinding dirt. Each creature in that area must succeed on a DC 10 Dexterity saving throw or take 1d4 piercing damage and be blinded for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.
Shift Body. When the dirt rat is hit by an attack, it can use its reaction to reduce the impact of the attack by shifting its malleable body, effectively reducing the damage of the attack by half, rounded up.