Tripwire Patch

Huge plant, unaligned

Armor Class 14 (natural armor)
Hit Points 95 (10d12 + 30)
Speed 10 ft., burrow 20 ft.

18 (+4) 10 (+0) 17 (+3) 2 (–4) 12 (+1) 6 (–2)

Skills Perception +5, Stealth +4
Condition Immunities blinded, deafened, prone
Senses tremorsense 60 ft., passive Perception 15
Challenge 4 (1,100 XP)
Proficiency Bonus +2


  • Bountiful Death. When the tripwire patch reduces a creature to 0 hp, nearby plants erupt with growth. Plants within 20 feet of the body become thick, overgrown difficult terrain, and all plants within a 2-mile radius centered on the point where the creature was killed become enriched for 7 days for each CR of the slain creature (minimum of 7 days), cumulatively increasing in duration each time the patch kills a creature. Enriched plants yield twice the normal amount of food when harvested.
  • False Appearance. While the tripwire patch remains motionless, it is indistinguishable from a normal patch of foliage, such as flowers or bushes.


  • Multiattack. The tripwire patch makes two Bite attacks or one Bite attack and two Tripwire Vine attacks.
  • Bite. Melee Weapon Attack: +6 to hit, reach 5 ft., one creature. Hit: 13 (2d8 + 4) piercing damage.
  • Tripwire Vine. Melee Weapon Attack: +6 to hit, reach 20 ft., one creature. Hit: 7 (1d6 + 4) bludgeoning damage, and the target must succeed on a DC 14 Strength saving throw or be forced prone and pulled up to 15 feet toward the tripwire patch.


  • No Escape. If a prone creature within 5 feet of the tripwire patch stands up from prone, the tripwire patch can make one Bite attack against it.


In a verdant meadow, a mass of plants grows wild.

Vines rustle below the greenery, searching for unwary creatures on which to feed.

This huge mass of vines and foliage sits in woodlands and other clearings, waiting for creatures to draw close enough to attack. The tripwire patch knocks unsuspecting travelers off their feet, dragging them to its open maw to serve as its next meal.

Benign Fertilizers. When it consumes any living creature, the tripwire patch magically fertilizes the land for miles around it. The more creatures the patch consumes, the greater the blessing to the surrounding area. Plant creatures instinctively understand the odd yet powerful boost tripwire patches provide to a forest’s health. Plants capable of trapping, luring, or moving animals often bring such creatures to tripwire patches in times of drought or after forest fires, following some unknown instinct to preserve the forest. Druids understand it is necessary to help devastated forests and interfere only when humanoid lives are at risk.

Unwitting Tools. Cultists aware of the tripwire patch’s plenteous properties feed it victims to prove their fell god’s power. Farmers hit with drought, blight, or crop infestations sometimes trick undesirables into entering a tripwire patch’s territory, ensuring bountiful harvests while disposing of communal dead weight.

Section 15: Copyright Notice

Tome of Beasts 3 © 2022 Open Design LLC; Authors: Eytan Bernstein, Celeste Conowitch, Benjamin L. Eastman, Robert Fairbanks, Scott Gable, Basheer Ghouse, Richard Green, Jeremy Hochhalter, Jeff Lee, Christopher Lockey, Sarah Madsen, Ben Mcfarland, Jonathan Miley, Kelly Pawlik, Sebastian Rombach, Chelsea Steverson, Brian Suskind, Mike Welham

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