Huge Monstrosity, unaligned
Armor Class: 17 (Natural Armor)
Hit Points: 186
Speed: 40 ft., burrow 40 ft.
STR DEX CON INT WIS CHA 25(+7) 7(-2) 21(+5) 1(-5) 7(-2) 5(-3)
Saving Throws: Strength +9, Constitution +8
Senses: Blindsight 30 ft., Tremorsense 60 ft.
Languages: ---
Tunneler: The worm can burrow though solid rock or ice at half its burrow speed and leaves a 5-foot-diamter tunnel in its wake.
Actions
Multiattack: The worm can make two attacks; only one can be a bite attack.
Slam: Melee Weapon Attack, +9 to hit, reach 10 ft., one
target. Hit: 3d8+7 bludgeoning damage.