Somnacanth Guide: Weakness, Armor, Drops, and Weapons | Monster Hunter Rise | MHR (MH Rise)

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Somnacanth Guide

This is a hunting guide for Somnacanth, a returning monster in Monster Hunter Rise (MH Rise). Read on to learn Somnacanth's weaknesses, forgeable weapons, forgeable armor, drops, and more!

All Somnacanth Related Articles
Somnacanth.pngSomnacanth Guide Weapons.pngSomnacanth Weapons Armor Icon.pngSomnacanth Armor

Somnacanth Hunter Notes

Weakness &
Somnacanth New Monster.png
Type Leviathan
Threat Level 5/10 Rampage Type
Major Weakness Thunder Other Weakness(es) Fire
Blight / Elemental Damage Water Abnormal Status Flash, Sleep, Blast
A formidable aquatic serpent that crests on moonlit nights--likely why it has often been mistaken for a mermaid. It expels an intoxicating sleep powder from its neck gills and tail, knocking out prey before it can resist. Some Somnacanth sightings tell of this species making use of unusual shells, so exercise caution if catch one swimming towards you with a shell in its claws.
Known Habitat
Map Starting Area Visited Areas Rest Area
Frost Islands.pngFrost Islands 8 5 / 7 / 8 / 10 / 11 / 12 10
Flooded Forest.pngFlooded Forest 6 1 / 2 / 3 / 4 / 5 / 6 / 7 / 14 14
Lava Caverns.pngLava Caverns 2 2 / 3 / 6 / 7 / 8 / 9 / 10 / 11 6
Damage Type Weaknesses
Part Sever Symbol (MH Rise).png Blunt Symbol (MH Rise).png Ammo Symbol (MH Rise).png
Head 65 55 45
Head Fin 40 40 20
Neck 70 70 60
Foreleg 45 45 35
Abdomen 30 40 20
Back 25 25 15
Hind Leg 25 30 25
Tail 60 55 35
Overall 45 45 32
Elemental Weaknesses
Part Fire Symbol (MH Rise).png Water Symbol (MH Rise).png Thunder Element (MH Rise).png Ice Element (MH Rise).png Dragon Element (MH Rise).png
Head 15 0 25 0 0
Head Fin 0 0 15 0 0
Neck 15 0 25 0 0
Foreleg 5 0 15 0 0
Abdomen 10 0 15 0 0
Back 10 0 15 0 0
Hind Leg 10 0 25 0 0
Tail 15 0 30 0 0
Overall 10 0 21 0 0

Higher numbers indicate higher potential damage to the monster.

Hunting Tips
・While in the water, it can move about as it pleases, but it doesn't fare so well on land. Draw it out to the shore for an easy hunt. If you're caught in a cloud of its sleep powder, it's lights out; use Wirebug to leap away from it and position for a counter attack.

Status Effect Vulnerabilities
Poison Stun Paralysis Sleep Blast
1★ 1★ 1★ 0 2★
Exhaust Fireblight Waterblight Thunderblight Iceblight
1★ 1★ 1★ 2★ 1★

The more stars, the more advantageous it will be for the player.

Item Vulnerabilities
Pitfall Trap Shock Trap Flash Bomb
Sonic Bomb Meat Effects Dung Bomb

◯ = Vulnerable; ✕ = Fully Resistant; ▲ = Situational

Monster Part Extract
Head Red Extract
Head Fin Red Extract
Neck Red Extract
Foreleg White Extract
Abdomen Red Extract
Back Red Extract
Hind Leg White Extract
Tail Orange Extract

Somnacanth Materials and Drops

Materials and Drops
Carves & Drops
Capture Rewards
Broken Part Rewards
Target Rewards
Material Drop Rate
Somnacanth Shell 34%
Somnacanth Dust 23%
Somnacanth Scale 21%
Somnacanth Fin 14%
Monster Bone L 8%
Dropped Materials
Material Drop Rate
Somnacanth Scale 50%
Wyvern Tear 50%
Somnacanth Dust 40%, 35% (x2)
Somnacanth Talon 10%, 15%
Material Drop Rate
Somnacanth Dust 30%, 12% (x2)
Somnacanth Talon 27%
Somnacanth Scale 17%
Monster Bone L 14%
Monster Bone L 14%
Material Drop Rate
Somnacanth Fin 80% (Head Fin)
Somnacanth Talon 80% (Arm x2)
Somnacanth Scale 20% (Arm), 100% (Tail)
Somnacanth Dust 20% (Head Fin)

High Rank

Materials and Drops
Carves & Drops
Capture Rewards
Broken Part Rewards
Target Rewards
Material Drop Rate
Somnacanth Scale+ 43% (Body)
Somnacanth Shell+ 32% (Body)
Somnacanth Sedative 14% (Body)
Somnacanth Fin+ 10% (Body)
Wyvern Gem 1% (Body)
Dropped Materials
Material Drop Rate
Somnacanth Scale+ 50%
Somnacanth Sedative 39%, 35% (x2)
Large Wyvern Tear 30%
Wyvern Tear 20%
Somnacanth Talon+ 10%, 15%
Wyvern Gem 1%
Material Drop Rate
Somnacanth Fin+ 80% (Head Fin)
Somnacanth Talon+ 80% (Arm x2)
Somnacanth Scale+ 20% (Arm), 97% (Tail)
Somnacanth Sedative 17% (Head Fin)
Wyvern Gem 3% (Head Fin), 3% (Tail)

Somnacanth Weapons and Armor

Somnacanth Close-Range Weapons

Somnacanth Ranged Weapons

Ranged Weapons
No ranged weapons for this large monster.

Somnacanth Armor

Somnacanth Buddy Equipment

Somnacanth Quest Appearances

Low Rank
High Rank
Quest Type Lvl Quest Name
Hub Quest ★3 Beckoning Slumber (Key)
Village Quest ★4 Infernal Lacrimosa (Key)
Village Quest ★5 BZZZZZ or ZZZZzzzz
Village Quest ★5 The Secret Ingredient
Quest Type Lvl Quest Name
Hub Quest ★3 Beckoning Slumber (Key)
Hub Quest ★6 Invoke the Insect Glaive
Hub Quest ★6 A Somniferous Elegy (Key)
Event Quest ★7 I Can't Do What Somnacan

Somnacanth Attack Patterns

Name Description
Abnormal Breath Attack Diffrent types of breath Attacks that all deal the sleep condition.
Rush Attacks Somnacath uses its body to do a variety of rushing physical attacks.
Swipe Attacks With its claws, the Somnacanth swipes at its target.
Shell Attacks The Somnacanth makes use of special shells that each deals its own effects.
Flying Fins A barrage of pointed scales are sent at the Somnacanth's target, with a wide spread.

Abnormal Breath Attack

Monster Hunter Rise (Somnacanth) - Somnacanth Sleep

Somnacanth's breath attacks typically inflict Sleep but can inflict a variety of other random abnormal statuses. These breath attacks have four patterns:

  • Somnacanth unleashes a frontal breath attack in a straight line in front of it.
  • Somnacanth unleashes a sweeping breath attack in a large cone in front of it.
  • Somnacanth unleashes a massive wave of mist from its body, inflicting Sleep or other statues to anyone caught in it. This is telegraphed by the player's camera suddenly zooming out.
  • Somnacanth swims around belly-up, unleashing Sleep Clouds along her path.

Rush Attacks

Monster Hunter Rise (Somnacanth) - Rush Attack.gif

Somnacanth can easily rush anyone down from either its standing or four-legged positions. This attack can have two patterns:

  • A quick frontal rush from the four-legged position.
  • Somnacanth drums its chest from its standing position, followed by a jumping rush attack towards its target.

Swipe Attacks

Monster Hunter Rise (Somnacanth) - Swipe Attacks.gif

Somnacanth uses its large head fins or arms to swipe a big area in front of it, inflicting heavy damage to anyone caught in it.

Shell Attacks

Monster Hunter Rise (Somnacanth) - Shell Explosion.gif

Somnacanth occasionally swims around belly-up while picking up a certain shell along its path. It will attempt to break the shell open by beating it on its chest, inflicting a certain effect depending on the shell it used:

  • If the shell is yellow, Somnacanth will flash anyone in front in a narrow cone once it breaks.
  • If the shell is red, The rock will explode in a small radius around Somnacanth once it breaks.

Flying Fins

Monster Hunter Rise (Somnacanth) - Flying Fins.gif

Somnacanth has a massive tail and is capable of using it to throw several fins at the hunter for a long range attack.

How to Beat Somnacanth

Check Icon.pngKeep Out of Water
Check Icon.pngBring Energy Drinks and Nulberries
Check Icon.pngUse Sonic Bombs to Interrupt
Check Icon.pngKeep to Its Back

Keep Out of Water

Monster Hunter Rise (Somnacanth) - To Land.gif

Somnacanth's rock flash and Explosion attacks occur when its on its belly-up in water. These attacks can interrupt hunters and allow Somnacanth to unleash powerful combos.

If possible, try luring Somnacanth to land using a Stinkmink or Wyvern Riding to disable these attacks completely.

Bring Energy Drinks and Nulberries

Monster Hunter Rise (Somnacanth) - Energy Drink.gif

Somnacanth inflicts Sleep and other statuses with its breath. Negate this potentially deadly effect by bringing energy drinks and a bunch of nulberries!

Investing in Sleep Resistance is also worth considering when hunting Somnacanth.

Use Sonic Bombs to Interrupt

Monster Hunter Rise (Somnacanth) - Sonic Bomb Interrupt.gif

When Somnacanth coils up to perform its AoE sleep particle attack, it can be interrupted by Sonic Bombs or sonic attacks from the Hunting Horn. This creates a great window of opportunity to unleash your strongest silkbind attacks or combos.

Keep to Its Back

Monster Hunter Rise (Somnacanth) - Back AttackBack Pain.png

Somnacanth's back is exposed when ever it stands on its tail for its slam or breath attacks. Use a wiredash or dodge roll to position yourself at its back to avoid its attack or deal some damage.

Monster Hunter Rise Related Links

All Somnacanth Related Articles
Somnacanth.pngSomnacanth Guide Weapons.pngSomnacanth Weapons Armor Icon.pngSomnacanth Armor

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    New Comment

    • >>[9]
      Each upgrade level adds 2 points to defense. Depending on rarity the armor will have different levels to max up to. Take the total levels minus one and multiply by 2 to get the total defense plus what the armor started with.

    • Thunder God's Armor
      Pigment 2 for all is 160, 50, 15
      Head and chest 1: 35, 65, 20
      Arm1: 35, 70, 50
      Waist1: 35, 65, 40

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