Pliosaurus (5e Creature)
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Gargantuan beast, unaligned
Hold Breath. The Pliosaurus can hold its breath for 60 minutes.
Bite. Melee Weapon Attack: +12 to hit, reach 5 ft., one target. Hit: 23 (3d8 + 8) piercing damage. If the target is a Large or Smaller creature that is not killed or incapacitated by the attack the creature is considered grappled until a successful Strength saving throw can be made. While grappled the creature takes an additional 1d8 + 5 piercing damage per round until killed or freed but the pliosaurus cannot attack any additional targets with bite without breaking the grapple.
Tail Whip. Melee Weapon Attack: +3 to hit, reach 10 ft., Multiple targets, all targets on the side of the attack. Hit:13 (2d4 + 5) bludgeoning damage. Creatures knocked incapacitated from a tail whip automatically fails its first death saving throw if fully submerged under water.
Capsize As a reaction to being attacked the Pliosaurus can attempt to capsize any vessel within it's movement range.It does this by ramming the vessel with its head or tail. Any ship smaller than ½ the size of the Pliosaurus must make a DC 15 D20 roll or risk being capsized. Any ship ½ the size of the Pliosaurus or larger must make a DC 10 D20 roll to prevent from being capsized. On a successful roll all creatures aboard the ship must make a DC 10 Dex save else be knocked prone. If the capsize is successful then any creature on the upper deck is knocked into the water
Looking like part crocodile, part whale and all terrifying these hold overs from the Late Jurassic era are the literal embodiment of nightmare fuel for sailors of the deep sea. Larger then nearly anything that is comes across the Pliosaurus are a true apex predator. With its large crocodile head full of uneven teeth it sees anything smaller then it as prey including smaller sailing vessels and is known to come up from the bottom with frightening speeds to crush small craft in its gaping maw or to ram larger vessels trying to capsize them, then feeding on the creatures that fall into the water. Unintelligent by nature it’s driven only to eat enough to fuel its enormous body. Don’t let its size fool you however its large muscular frame is propelled by 4 large flippers similar to those of sea turtles, and using its tail like a rudder for added maneuverability. These aquatic dinosaurs are fast, deadly, and always hungry.