Troll, River

Family: Troll

Large giant, chaotic evil

Armor Class 15 (natural armor)
Hit Points 57 (6d10 + 24)
Speed 30 ft., swim 40 ft.

17 (+3) 14 (+2) 19 (+4) 6 (-2) 9 (-1) 7 (-2)

Skills Athletics +5, Perception +3
Damage Immunities poison
Senses darkvision 60 ft., passive Perception 13
Languages Giant
Challenge 4 (1,100 XP)

Special Traits

  • Amphibious. The river troll can breathe both air and water.
  • Keen Smell. The river troll has advantage on Wisdom (Perception) checks that rely on smell.
  • Poison Skin. The river troll’s skin contains a powerful poison. Any time the troll touches another creature, the creature takes 7 (2d6) poison damage (included in attacks).
  • Regeneration. The river troll regains 10 hit points at the start of its turn as long as it is at least partially submerged in water; strong rainfall also allows the troll’s regeneration to function. If the troll takes acid or lightning damage, this trait doesn’t function at the start of the troll’s next turn. The troll only dies if it starts its turn with 0 hit points and doesn’t regenerate.


  • Multiattack. The river troll makes three attacks: one with its bite and two with its claws.
  • Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 6 (1d6 + 3) piercing damage plus 7 (2d6) poison damage.
  • Claw. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 10 (2d6 + 3) slashing damage plus 7 (2d6) poison damage.


Similar in many respects to their swamp-loving kin, river trolls prefer a less slimy existence and choose to live in forested regions near rivers and streams, or under bridges. River trolls patrol the banks of large rivers, looking to hunt the forest creatures that use the river for sustenance. Very rarely, the river trolls are indigent enough to use crude nets or spears to harvest fish and other aquatic foods from the river itself. River trolls are more frequently found as a group, as they are somewhat smaller than a normal troll (though only other trolls really notice this). They will work together with those of their own kind, but not with other common trolls. River trolls are adept swimmers and like to lurk underwater for prey near bridges, if possible.

Section 15: Copyright Notice

Rappan Athuk © 2018, Frog God Games, LLC; Authors Bill Webb, Clark Peterson, Skeeter Green, Tom Knauss, Lance Hawvermale, WDB Kenower, Casey Christofferson, and Greg Raglund; based on the original creation of Bill Webb.

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