Bison, Bighorn

Large beast, unaligned

Armor Class 14 (natural armor)
Hit Points 57 (6d10 + 24)
Speed 40 ft.

22 (+6) 12 (+1) 19 (+4) 2 (-4) 12 (+1) 5 (-3)

Senses passive Perception 11
Challenge 4 (1,100 XP)

Special Traits

  • Trample. If the bison moves at least 20 feet straight toward a creature and then hits it with a gore attack on the same turn, that target must succeed on a DC 16 Strength saving throw or be knocked prone. If the target is prone, the bison can make one stomp attack against it as a bonus action.


  • Multiattack. The bighorn bison can make one gore attack and one kick attack.
  • Gore. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 19 (3d8 + 6) piercing damage.
  • Stomp. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 22 (3d10 + 6) bludgeoning damage.
  • Kick. Melee Weapon Attack: +8 to hit, reach 5 ft., one target directly behind it. Hit: 15 (2d8 + 6) bludgeoning damage.


The bighorn bison, a towering behemoth, roams tall-grassed steppes from one forage site to the next. Two massive horns spiral upward from the base of its skull, and another pair curls outward and down. The polycerate bovine’s face is covered with additional lesser horns and keratinous growth, creating a warlike visage both fearsome and defensively practical. The bighorn bison will use its immense bulk and natural weapons to stampede a destruction upon any foe that frightens or enrages it.

The bighorn bison stands over 8 feet tall and weighs over 2,000 pounds. Also called the steppe bison, it often appears docile, even lazy, but may fly into a rage unpredictably, often without reason. The most dangerous time for others is middle summer to late autumn when the bison enter mating season.

The bighorn bison is an herbivore, preferring woody plants that are prevalent on prairies, plains, and some river valleys. A bighorn bison does not enjoy the company of other bison species, often becoming violent if pushed to occupy the same area; in fact, a herd of bighorn will charge and violently displace any other species’ herds and will not willingly mate with them.

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