Shark with a Knife | New Monster for Fifth Edition

Shark with a Knife

There are only three things known about the enigmatic Shark with a Knife. First, it is a shark. Second, it is carrying a knife. Third, it’s Vadriken the Three-Timer’s archnemesis.

Everything else is up for debate. Is it male? Is it female? Why does it have arms and legs? How come it sounds like a Murktowner with it talks? Why is its favorite sandwich pork belly, tomato, and lettuce on rye? Why does it yell ‘BOOM’ every time it stabs someone with its eponymous knife?

Perhaps some mysteries are better left unanswered.

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Shark with a Knife

Large humanoid (shark with arms), chaotic neutral

Armor Class 12 (natural armor)

Hit Points 52 (8d10 + 16)

Speed 20 ft., swim 40 ft.

Abilities Str 18 (+4), Dex 13 (+1), Con 15 (+2), Int 8 (-1), Wis 10 (+0), Cha 9 (-1)

Skills Perception +2

Senses blindsight 30 ft., passive Perception 12

Languages Common, Sharkese

Challenge 3 (700 XP)

Limited Amphibiousness. The shark with a knife can breathe air and water, but it needs to be submerged at least once every 4 hours to avoid suffocating.

“Oh Shit, It’s—”. Any creature that starts its turn within 60 feet of the shark with a knife that can see the shark with a knife must succeed on a DC 10 Wisdom saving throw or become frightened until the start of its next turn. On a successful saving throw, the creature is immune to this trait for 24 hours.

Shark With A Knife Theme Song. When the shark with a knife moves it can repeat the phrase “duh nuh… duh nuh…” over and over again, increasing the tempo as it moves closer to a target. So long as the shark with a knife continues doing this, then moves 20 feet straight and hits the target with a knife attack on the same turn, the target takes an extra 2 (1d4) piercing damage.


Multiattack. The shark with a knife attacks with its knife. If its knife attack hits it can use its bonus action to make one bite attack.

Bite. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 13 (2d8 + 4) piercing damage.

Knife. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 4 (1d4 + 4) piercing damage. If the shark with a knife hits, it yells “BOOM!” This declaration of BOOM has no effect other than just being really loud and weird.


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4 thoughts on “Shark with a Knife | New Monster for Fifth Edition

    1. Alas, we don’t know the author of the fantastic image! If you ever discover it please be sure to let us know so we can credit them accordingly!

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