River Troll (5e Creature)
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Large giant, chaotic evil
Hold Breath. While underwater, the troll can hold its breath for 15 minutes.
Regeneration. The troll regains 10 hit points at the start of its turn. If the troll takes acid or fire damage, this trait doesn't function at the start of the troll's next turn. The troll dies only if it starts its turn with 0 hit points and doesn't regenerate.
Stench. Any creature other than a troll that starts its turn within 5 feet of the troll must succeed on a DC 13 Constitution saving throw or be poisoned until the start of the next turn. On a successful saving throw, the creature is immune to the stench for 1 hour.
Multiattack. The troll makes two melee weapon attacks: one with its bite and one with its greatclub or two greatclub attacks.
Bite. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 7 (1d6 + 4) piercing damage.
Greatclub. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 13 (2d8 + 4) bludgeoning damage.
Troll Vomit (Recharge 5-6). The troll spews vomit in a 15-foot cone. Each creature in that area must make a DC 14 Dexterity saving throw, taking 21 (6d6) acid damage on a failed save, or half as much damage on a successful one.
A river troll is a distinct and infamous breed of troll that lives almost exclusively within dirty rivers, marshes and other foul waters, hence their name. They have fish-like fins on their heads and back. A river troll somewhat resembles the bottom of the river, if that riverbed is particularly coated in sediment, slime, rotting vegetation, fish carcasses, and various other smelly detritus whose precise nature and origin are too horrible to contemplate. In all probability the river troll’s stink is even worse than that of the riverbed, since one can add the troll’s personal miasma to the ill-omened mélange of odours emitted from the mucky smears on its skin. They often antagonize lizardfolk and any humanoid that gets too close to their river. River trolls are infamous for their rather disgusting ability of puking acidic bile on their enemies.