Huge monstrosity, unaligned

Armor Class 19 (natural armor)
Hit Points 129 (13d12+39 HD)
Speed 40 ft., 40 ft. (leap)

20 (+5) 16 (+3) 16 (+3) 2 (-4) 12 (+1) 6 (-3)

Condition Immunities frightened
Senses passive Perception 11
Skills Stealth +10
Challenge 7 (2,900 XP)


  • False appearance. While it remains motionless, the stonehorn is indistinguishable from an inanimate statue.
  • Surprise Attack. If the stonehorn is motionless when first encountered, it gains advantage on initiative unless its opponent succeeds at a Wisdom (perception) check against its passive stealth of 20.


  • Multiattack. The stonehorn makes three attacks each round, two claws and one bite.
  • Claws. Melee Weapon Attack: +11 to hit, reach 10 ft., one target. Hit: 10 (1d10+5) slashing damage.
  • Bite. Melee Weapon Attack: +11 to hit, reach 5 ft., one target. Hit: 11 (1d12+5) piercing damage.
  • Ram. Melee Weapon Attack: +11 to hit, reach 5 ft., one target. Hit: 17 (2d12+5) bludgeoning damage, and the victim must succeed at a DC 16 Strength check or be forced prone. Against prone victims, the stonehorn may immediately attempt a claw attack
  • Leaping Strike. If the stonehorn is more than 20 feet from a victim, it will leap at its victim, attempting to crush it with its bulk. It makes a ram attack, and if successful, the victim must succeed at a Dexterity save (DC 16) or be crushed under the creature, suffering an additional 13 (2d12) bludgeoning damage and be grappled and restrained. While thus restrained, the stonehorn may automatically inflict claw damage on the victim every round. The victim may attempt to escape at the end of each of its turns, with an escape DC of 16.


Stonehorns are huge creatures, with massive arms and barrel chests. When they stand, they are some 16 feet high. With grey skin, long arms, and a huge belly, the stonehorn crouches on two long frog-like legs. Beady eyes peer out from beneath a broad head crowned by massive horns. The stonehorn’s eyes are hollow pools of gray indifference. Their lipless mouths, lined with thousands of tiny, sharp teeth remain clamped shut unless they feed. The stonehorn prefer to dwell in swamps or marshy areas where their height and strength give them an advantage. Scholars maintain that the beast was born of the toads and frogs to which it bears a slight resemblance.

Docile Travelers. The stonehorn travel alone or in pods of 2-4. They lay eggs when they breed; these are dropped in deep pools and left to grow until they are mature. This generally takes 3-5 years. The stonehorn hatches fully grown and hungry.

Leaping Combatants. In combat, the stonehorn leaps much as a frog does, attempting to land upon its victim. They move very quickly for a beast so large, lunging forward on their legs. This allows them to leap great distances, up 40 feet. While crushing a victim, they rend it with claws and fangs. They do not fear death and attack without any morale. They cannot be affected by fear or any similar spell.

Section 15: Copyright Notice

5th Edition Monsters & Treasure of Airhde, 1st Printing, Copyright 2021, Troll Lord Games; Author Stephen Chenault & Jason Vey

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