Behemoustache (5e Creature)
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Huge beast, unaligned
Stunning Charge. If the behemoustache moves at least 20 feet straight toward a creature and then hits it with a ram attack on the same turn, that target must succeed on a DC 18 Constitution saving throw or be knocked stunned until the end of its next turn. If the target is stunned, the behemoustache can make one bite attack against it as a bonus action.
Water Breathing. The behemoustache can breathe only underwater.
Multiattack. The behemoustache makes two attacks, one ram and one bite. It can use its Swallow instead of making a bite attack.
Bite. Melee Weapon Attack: +11 to hit, reach 5 ft., one target. Hit: 23 (4d8 + 5) piercing damage, and the target is grappled (escape DC 18). Until this grapple ends, the target is restrained and the behemoustache can’t bite another target.
Ram. Melee Weapon Attack: +11 to hit, reach 5 ft., one target. Hit: 35 (5d10 + 8) bludgeoning damage.
Swallow. The behemoustache makes one bite attack against a Medium 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 total cover against attacks and other effects outside the behemoustache, and it takes 15 (5d4 + 3) acid damage at the start of each of the behemoustache's turns. If the behemoustache takes 25 damage or more on a single turn from a creature inside it, the behemoustache must succeed on a DC 15 Constitution saving throw at the end of that turn or regurgitate all swallowed creatures, which fall prone in a space within 10 feet of the behemoustache. If the behemoustache dies, a swallowed creature is no longer restrained by it and can escape from the corpse by using 20 feet of movement, exiting prone.
A large, predatory fish which hunts in tropical waters, notable for its gaping maw full of oversized teeth and its magnificent, billowing mustache. Although highly sought after - its bones are almost as strong as steel, its flesh oily but delicious, and its mustache can make a fearsome trophy or several exotic antimacassars - its size and ferocity makes hunting rare.