Bridge Venom Troll

Keen Smell. The troll has advantage on Wisdom (Perception) checks that rely on smell.

Regeneration. The troll regains 10 hit points at the start of each of its turns. 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.

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: 7 (1d6 + 4) piercing damage plus 4 (1d8) poison damage, and the creature is poisoned until the start of the troll’s next turn.

Claws. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 11 (2d6 + 4) slashing damage plus 4 (1d8) poison damage.

Turn 1 - Venom Spray . The troll makes a giant leap into an unoccupied space within 20ft and then slices itself with a claw, releasing a spray of poison in a 15-foot radius circle. The troll takes 7 (2d6) slashing damage (this damage can’t be reduced in any way). Each creature in the area must make a DC 16 Constitution saving throw. On a failed save, a creature takes 18 (4d8) poison damage and is poisoned for 1 minute. On a successful save, the creature takes half as much damage and isn’t poisoned. A poisoned creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Turn 2 - Grab and Throw. The troll grabs as many creatures within 5ft as it has hands still attached and throws them in a 15ft line. The thrown creature needs to make a DC15 Dexterity Saving Throw to avoid being grabbed but on a failed save the target creature is picked up and thrown for 15ft. The creature will take 8 (2d8) bludgeoning damage. Any creature that is in the line of the thrown creature needs to make a DC15 Dexterity Saving Throw and on a failed save take 8 (2d8) bludgeoning damage.

Turn 3 - Whirlwind Attack. Melee Attack.  +7 to hit, reach 5 ft., all targets in range. Hit: 11 (2d6 + 4) slashing damage plus 4 (1d8) poison damage. 

Poison Splash. As the troll spins the poison from its open wounds splashes out in a 15ft radius circle around it and all targets within range must make a DC 15 Dexterity Saving Throw. On a failed save the target creatures take 4 (1d8) poison damage. On a successful save they take half damage.