Troll, Swamp

Family: Troll

Large giant, chaotic evil

Armor Class 15 (natural armor)
Hit Points 105 (10d10 + 50)
Speed 30 ft., swim 30 ft.

18 (+4) 13 (+1) 21 (+5) 8 (-1) 10 (+0) 7 (-2)

Skills Perception +3, Stealth +4
Senses darkvision 60 ft., passive Perception 13
Languages Giant
Challenge 6 (2,300 XP)

Special Traits

  • Keen Smell. The swamp troll has advantage on Wisdom (Perception) checks that rely on smell.
  • Overwhelming Stench. Creatures that start their turn or move within 5 feet of the swamp troll must succeed on a DC 15 Constitution saving throw or become poisoned. The creature can repeat the saving throw at the start of each of their turns, ending the effect on itself on a success. If the creature stays at least 10 feet away from the swamp troll for an entire round they automatically succeed on saving throws to end the effect. After a successful saving throw, a creature is immune to the swamp troll’s stench for 24 hours.
  • Regeneration. The swamp troll regains 10 hit points at the start of its turn. If the swamp troll takes acid or fire damage, this trait doesn’t function at the start of the swamp troll’s next turn. The swamp troll dies only if it starts its turn with 0 hit points and doesn’t regenerate.
  • Swamp Camouflage. The swamp troll has advantage on Dexterity (Stealth) checks made to hide while in swamps or murky water.


  • Multiattack. The swamp 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: 8 (1d8 + 4) piercing damage.
  • Claws. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 13 (2d8 + 4) slashing damage.


Able to wait under water almost indefinitely, swamp trolls are a menace in any wetland, and travelers are wise to be cautious around any body of water too deep or murky to see the bottom.

They are particularly dangerous in swamps, or areas of stagnant water, where they blend with the murk and algae.

Swamp trolls’ preferred method of dispatch is drowning, although their bite and claws work just as well. Their rubbery hide is difficult for weapons to find purchase on, and is armored with scales around the joints.

Section 15: Copyright Notice

Game Master's Toolbox Ultimate Bestiary: Revenge of the Horde Copyright 2017, Chris Haskins, Nord Games LLC.

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