Stone Mountain Troll
Stone Mountain Troll — The Encounter
The crag that hungers, all teeth and living stone · a boss your table can run with almost no prep. SRD 5.1-compatible.
Who Is Stone Mountain Troll
They say a mountain troll is born when a hungry stone wakes. By day it lies folded against the scree, a boulder among boulders, until a foolish traveler steps close and the boulder unhinges a jaw lined with broken teeth. Its hide is true rock, grey and seamed, sprouting the same glassy spurs that crust a deep cavern, so that blade and arrow chip and skip away as if striking a cliff. Wound it and the wound knits over with fresh stone, the crag remaking itself faster than spears can open it. Only the bite of flame or the hiss of acid stalls that mending, and old herders know to carry both. It is a slow, stupid hunger given the patience of geology, ambushing the mountain pass year after year, and the cairns along the high road are not all graves. Some are the troll, waiting.
Run Stone Mountain Troll in Sixty Seconds
- It's a rock until it isn't. Run it hidden against stone; the first PC within 10 ft. eats an advantaged bite before initiative even feels fair.
- Regeneration is the whole fight. It heals 10 every turn and only stays dead if it starts its turn at 0 — track that the round it drops.
- Fire and acid are the off switch. Either one shuts down its mending for a round; telegraph that so the party figures out the trick.
- Kill-priority for the party: nothing, until they have a burn source — chipping it with steel alone is a losing trade against the regen.
- Three ways to run it: lone pass-guardian roadblock; armored wall in front of a caster boss; or a pack of two-three as a lair's heavy line.
Stone Mountain Troll
Large giant (troll), chaotic evil
CR 6 · 2,300 XP · GUIDELINEStonehide Regeneration. The troll regains 10 hit points at the start of its turn. If it takes acid or fire damage, this trait doesn't function at the start of its next turn. The troll dies only if it starts its turn with 0 hit points and doesn't regenerate.
Living Crag. While the troll remains motionless against natural stone it is indistinguishable from a boulder (it has advantage on Dexterity (Stealth) checks made to hide in rocky terrain). The first creature to enter a space within 10 ft. of the hidden troll grants it advantage on its first attack that turn.
Actions
Multiattack. The troll makes three attacks: one with its bite and two with its claws.
Bite. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 12 (2d6 + 5) piercing damage.
Claw. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 11 (2d6 + 5) slashing damage.
A hunched mound of living rock split by a tooth-crowded maw, crystalline spikes bursting from its shoulders and forearms as it crouches over the shattered ground.
Stone Mountain Troll, Bound
Companion · acts on your initiative
Bound · GUIDELINESlow Mend (signature). At the start of its turn, if Stone Mountain Troll has taken no acid or fire damage since its last turn, it regains 6 hit points.
Actions
Boulder Fists. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 13 (2d8 + 4) bludgeoning damage.
Reactions
Shield of Stone. When an ally within 5 ft. is hit by an attack, Stone Mountain Troll interposes its rocky bulk, reducing that damage by 8 (2d6 + 1).
A smaller, tamer cousin coaxed from the same living rock, lumbering at its keeper's heel and shrugging off blows meant for others.
Guideline numbers — formula-tuned and read from the miniature's design, not yet table-proven. Tell us how it ran in the comments.
How It Fights — by Tier
Same creature, scaled threat. The traits never change; only the numbers move.
Open from ambush as a boulder, surging up to bite the nearest soft target. Its regeneration grinds a low-tier party down, so make them carry torches or a flask of acid or it simply will not die. Pair it with a single goblin-grade pack so the troll is the wall they cannot break.
Open by springing from cover with advantage on the closest cluster, then three attacks every round on whoever hits hardest. Kill-priority is whatever burns it: bait the party into wasting fire so its regeneration carries it. Run it as a roadblock add-on beside a caster or chieftain who hides behind its bulk.
At this tier it is a heavy minion, not the boss: hurl two or three at the party as the front line of a lair or as the muscle of a bigger threat. They wade in, soak fireballs meant for the real villain, and regrow between rounds. Pair them with a controller behind them; alone they are out-actioned by a full party.
Put Stone Mountain Troll on the table
Download the presupported STL and run the fight tonight — the model, and the encounter that comes with it.
Get the STL on MyMiniFactory →Clay Cyanide Companion Rules v1
How a bound creature acts
- A companion acts on its owner's initiative, immediately after the owner.
- It uses the Companion block above — roughly ×0.6 HP and damage, no recharge abilities, and at most one reaction trait.
- It moves freely; it takes its Action only while its owner is conscious.
- At 0 HP a companion is broken, not dead — restored on a long rest unless your table rules otherwise.
Original Clay Cyanide material © Clay Cyanide LLC — explicitly not the non-SRD official sidekick rules.
Questions, Asked at the Table
What CR is Stone Mountain Troll?
Its home tier is CR 6 (2,300 XP), built for level 5-10 parties: AC 16, 138 HP, +7 to hit, three attacks a round, and stonehide regeneration. Scaled stat lines for tiers 1 and 3 are provided so you can drop it into a level 1-4 or 11-15 game.
Can Stone Mountain Troll be a companion or ally?
The adversary is a wild, chaotic-evil predator, but the bound companion Scree is a tamed lesser cousin: AC 14, 83 HP, boulder fists, a slow stone mend, and a reaction to shield an ally. Use it as a tanky guardian for an NPC or a high-level player's bound brute.
How do I beat its regeneration?
Stonehide Regeneration heals 10 HP at the start of each of its turns and the troll only dies if it begins a turn at 0 HP. Any acid or fire damage shuts the trait off until its next turn, so bring a torch, alchemist's fire, or an acid spell and time the killing blow.
Tell Us How It Ran
This work includes material taken from the System Reference Document 5.1 ("SRD 5.1") by Wizards of the Coast LLC and available at dnd.wizards.com/resources/systems-reference-document. The SRD 5.1 is licensed under the Creative Commons Attribution 4.0 International License available at creativecommons.org/licenses/by/4.0/legalcode.
Clay Cyanide Miniatures is not affiliated with, endorsed, sponsored, or specifically approved by Wizards of the Coast LLC. This content is compatible with the fifth edition of the world's most popular fantasy roleplaying game. Companion rules, lore, names, and original mechanics © Clay Cyanide LLC.
Technical Specifications
32mm, 75mm
STL, Pre-supported STL
Standard or ABS-like resin, 0.05mm layer height
Yes — ready to print, optimized supports included
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