Armor Class 16 (natural armor)
Hit Points 9 (2d6 + 2)
Speed 30 ft., climb 30 ft., burrow 10 ft.
Senses darkvision 30 ft., tremorsense 60 ft., passive Perception 10
Languages Kruthik
Challenge 1/8
Keen Smell. The kruthik has advantage on Wisdom (Perception) checks that rely on smell.
Pack Tactics. The kruthik has advantage on an attack roll against a creature if at least one of the kruthik's allies is within 5 feet of the creature and the ally isn't incapacitated.
Tunneler. The kruthik can burrow through solid rock at half its burrowing speed and leaves a 2½-foot-diameter tunnel in its wake.
Stab. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 5 (1d4 + 3) piercing damage.
Mordenkainen's Tome of Foes, p. 211