Stone Delver

Large monstrosity, chaotic evil

Armor Class 19 (natural armor)
Hit Points 114 (12d10 + 48)
Speed 30 ft., burrow 30 ft.

21 (+5) 14 (+2) 18 (+4) 7 (-2) 10 (+0) 9 (-1)

Senses darkvision 120 ft., tremorsense 120 ft., passive Perception 10
Languages Stone Delver
Challenge 7 (2,900 XP)

Special Traits

  • Six Limb Charge. If the stone delver moves at least 20 feet straight towards a target and then hits it with a claw attack on the same turn, the target takes an extra 10 (3d6) slashing damage. If the target is a creature, it must succeed on a DC 16 Strength saving throw or be knocked prone. If the stone delver hit its initial target on the same turn and knocked it prone, it can use a bonus action to make up to four claw attacks against targets that are adjacent to the initial target.
  • Tunneler. The stone delver can burrow through solid stone at half its burrowing speed leaving a 5 foot wide, 10-foot-high tunnel in its wake.


  • Multiattack. The stone delver makes three claw attacks.
  • Claw. Melee Weapon Attack: +8 to hit, reach 10 ft., one target. Hit: 10 (1d10+5) slashing damage.


A grotesque horror that tunnels through the underground with its four powerful arms, the stone delver constantly searches for more prey to feed its insatiable hunger.

The creature stands on its short back legs when it tunnels, using its four arms and razor-sharp claws to dig through earth and stone. However, it can travel on all six limbs quickly, often rushing foes in a silent charge.

The stone delver’s carapace exterior is as hard as granite, shielding it from rock slides and tunnel collapses.

Although it primarily survives on flesh from plentiful subterranean races, it is always searching for gems to consume. The valuable crystals have a regenerative power, restoring lost hit points or healing damage within a few hours after consumption. The stone delver can be distracted by gems if thrown or displayed by characters. Deep within the ground, the stone delver’s lair often has a hidden hoard of raw and uncut gems.

Section 15: Copyright Notice

Tome of Horrors © 2018, Frog God Games, LLC; Authors: Kevin Baase, Erica Balsley, John “Pexx” Barnhouse, Christopher Bishop, Casey Christofferson, Jim Collura, Andrea Costantini, Jayson ‘Rocky’ Gardner, Zach Glazar, Meghan Greene, Scott Greene, Lance Hawvermale, Travis Hawvermale, Ian S. Johnston, Bill Kenower, Patrick Lawinger, Rhiannon Louve, Ian McGarty, Edwin Nagy, James Patterson, Nathan Paul, Patrick N. Pilgrim, Clark Peterson, Anthony Pryor, Greg Ragland, Robert Schwalb, G. Scott Swift, Greg A. Vaughan, and Bill Webb