Gyarados (5e Creature)
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Huge elemental, chaotic neutral
Damage Vulnerabilities lightning
Legendary Resistance (3/day). If the gyarados fails a saving throw, it can choose to succeed instead.
Multiattack. The gyarados can use its Frightful Presence. It then makes 4 attacks, one with its Hyper Beam, two with its aqua tail and one with its bite. It can use its Swallow instead of its bite.
Bite. Melee Weapon Attack: +18 to hit, reach 10 ft., one target. Hit: 34 (6d10 + 4) piercing damage. If the target is a creature, the creature is grappled (escape DC 20). Until the grapple ends, the target is restrained and the gyarados can't bite another target.
Hyper Beam. Ranged Weapon Attack: +16 to hit, reach 90/180 ft., one target. Hit: 35 (7d10) radiant damage.
Aqua Tail. Melee Weapon Attack: +16 to hit, reach of 15 ft., one target. Hit: 25 (5d10) bludgeoning damage.
Frightful Presence. Each creature of the gyarados' choice that is within 120 feet of the gyarados and aware of it must succeed on a DC 17 Wisdom saving throw or become frightened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creature's saving throw is successful or the effect ends for it, the creature is immune to the gyarados' Frightful Presence for the next 24 hours.
Swallow. The gyarados makes one bite attack against a large or smaller creature it is grappling. If the attack hits, the target takes the bite's damage, the target is swallowed, and the grapple ends. While swallowed, the creature is blinded and restrained, it has full cover against attacks and other effects outside the gyarados, and it takes 36 (6d12) acid damage at the start of each of the gyarados' turns. If the gyarados takes more than 60 damage on a single turn from the creature inside it, the gyarados must succeed on a DC 20 Constitution saving throw at the end of that turn or regurgitate the swallowed creatures, which fall prone in a space within 10 feet from the gyarados. If the gyarados dies, a swallowed creature is no longer restrainedand can escape from the corpse by using 30 feet of movement, exiting prone.
The can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature's turn. The regains spent legendary actions at the start of its turn.
Attack. The gyarados makes one attack of its choice.
Hurricane. Ranged Weapon Attack: +16 to hit, reach of 90/180 ft., hits an area of 30 fit within the range. Hit: 30 (5d10 + 5) force damage. Anyone in the area of the attack must make a DC 16 Dexterity saving throw or be blinded by the storm until they either leave the area or the storm passes which takes 1 minute.
Move. The gyarados can move up to half its speed.
Gyarados are incredibly rare creatures, almost never found anywhere, but when they are found, it's always in the oceans in the deepest trenches. They are very secretive creatures and don't visit the surface very often, but when they do, everyone who's smart knows to run for their lives. Gyarados are incredibly powerful and can lay waste to any town, dock, even an island chain if angered or bothered in any way. Normally, they are bright blue with white underbellies and white spots along their sides and a dark blue crest on their foreheads. Some civilizations view these reclusive and secretive creatures as gods of the oceans and they build statues to the destructive monsters that could wipe them out, statues or no.