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Somnacanth Guide - Attack Pattern & How To Beat
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Somnacanth Guide - Attack Pattern & How To Beat

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Check out this Somnacanth guide for Monster Hunter Rise (Switch). Find out how to beat Somnacanth, weakness, attack patterns, sleep attack & giganha interaction in MH Rise.

Table of Contents

All Monsters List

Somnacanth Basic Information

Somnacanth Information

EcologyIts figure when illuminated by the moonlight is said to look like a woman. That and its elegant shape when in the water have led to it being called the "Mermaid" Wyvern.
However, behind its seemingly gentle appearance lies a ferocious temperament, as it shows no mercy to those that invade its turf.
If it spots prey, it uses a sleep powder to induce a comatose state before attacking.
Check Out Somnacanth Armor & Weapons Here

Mermaid-Like New Monster


Somnacanth is an entirely new creature in Monster Hunter Rise. Even prior to the official announcement we had some glimpses of official art that featured a mermaid-like creature. Perhaps that was Somnacanth all along?

Brief Glimpse Of Somnacanath Armor?


At one point in an official video we were able to spot a female character wearing what looked to be a new set of armor. This armor has Somnacanath's distinctive coloration and glow, so we're tempted to say this will be Somnacanath's armor!

Giganha Cause It To Flinch

↑ A Japanese tweet explaining the mechanics of Giganha. When fed raw meat, they go into a frenzy and attack nearby things. If a monster happens to be nearby, it will take damage, and in this case, get stunned.

The Endemic Life "Giganha" can apparently cause Somnacanth to flinch when it attacks! Since Somnacanth seems to be active mostly in water, you'll no doubt easily find a way to make use of Giganha against it.

Check Out A List Of Endemic Life Here

Somnacanath Attack Patterns

Sleep Powder

Somnacanth's signature ability seems to be its sleep powder breath. If this hits you, you'll get the drowsy status, and if you don't cleanse it in time you'll fall fully asleep. Make sure you have a way of dealing with sleep before taking on this monster.

Jump Attack

Somancanath leaps into the air and charges down towards you. The animation here is rather fast, not giving you much time to react. If you're playing with a slower melee weapon, this might be particularly frustrating. Somnacanth will use this ability after putting you to sleep as well.


An ability somewhat characteristic of the leviathan monster class, Somnacanth will get down close to the ground and crawl/slither over to you at high speeds. It also seemed to follow this move up with its sleep powder attack.

Opening Up A Clam


In official videos, we were able to spot Somnacanth lie on its back and suddenly start to open up a clam with its hands. The light being emitted from the clam suggests to us that this might be an HP recovery move, or perhaps a buff.

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