Feral Somnacanth Weaknesses, Patterns, and How to Beat
This is a guide to the Feral Somnacanth Boss Fight in Monster Hunter Stories 3 (MHS3). Learn how to beat the Feral Somnacanth, its weaknesses, behaviour and attack pattern, and the best strategy to beat the Feral Somnacanth.
| Variants |
 Somnacanth |
 Feral Somnacanth |
 Aurora Somnacanth |
|---|---|---|
List of Contents
Feral Somnacanth Boss Weaknesses and Resistances
Feral Somnacanth Weakness
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Feral Somnacanth Damage Type Weaknesses
| Body Part |  Slash |
 Pierce |
 Blunt |
|---|---|---|---|
| Main Body | ◯ | ◯ | ◯ |
| Head | ✕ | ◯ | ✕ |
| Stomach | ✕ | ✕ | ◯ |
| Tail | ◯ | ✕ | ✕ |
| Throat | ✕ | ◯ | ✕ |
Status Ailment Resistance and Weaknesses
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Feral Somnacanth Pattern and Behaviour
| Jump to a Section |
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2. Normal State |
Attack Behavior
| Normal State |  |
|---|---|
| Balancing |  |
| Balancing (Storing Powder) |
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The Feral Somnacanth has 3 phases which are its normal, Balancing and Balancing (Storing Powder) State.
Normal State
| Turn Count | Move |
|---|---|
| Turn 1 | Feral Plasma Cannon |
| Turn 2 | Technical Attack |
| Turn 3 After Balancing (Stored Powder) State |
Feral Plasma Cannon |
| Turn 4 | Technical Attack |
The Feral Somnacanth will mainly use Thunder type attacks. Watch out for its move Feral Plasma Cannon as it affects all party members and has a chance to paralyze them. Additionally, it will apply Wyvernsoul Def Down to itself after launching this skill.
Balancing State
| Turn Count | Move |
|---|---|
| Turn 0 | Siren Song Uses this to enter the Balancing State. |
| Turn 1 | Sleep Powder Spray |
| Turn 2 (If Ally Falls Asleep) | Siren's Temptation |
| Turn 3 | Feral Plasma Cannon/td> |
| Turn 4 | Speed Attack |
During its Balancing State, the Feral Somnacanth will now try to apply Sleep Powder Spray to make your partners sleep. If an ally falls asleep, the Feral Somnacanth will use Siren's Temptation, causing massive damage.
Take note, that it switches its attack type to Speed Attacks, so make sure to use Technical type Attacks when engaging in head to heads.
Balancing (Storing Powder) State
| Turn Count | Move |
|---|---|
| Turn 0 | Sleep Powder Stash Uses this to enter the Balancing (Storing Powder) State. |
| Turn 2 | Deep Sleep Powder |
In its third state, the Balancing (Storing Powder) State, the Feral Somnacanth will use Deep Sleep Powder which may cause multiple allies to fall asleep. If the protagonist falls asleep, it will go back directly to its normal state and use Feral Plasma Cannon causing massive damage.
Recommended Monsties for the Feral Somnacanth
 Yian Kut-Ku
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 Anjanath
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 Dreadqueen Rathian
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Our recommended Monsties to bring against the Feral Somnacanth are Monsties that can use Fire type attacks. The Dreadqueen Rathian makes an excellent choice for its strong Fire type skills.
On the other hand, Anjanath and Yian Kut-Ku are also good picks as they can also counter the Feral Somncananth's Technical and Speed head to heads while having Fire type attacks too.
How to Beat the Feral Somnacanth
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Level Up to at Least Level 17
The Feral Somnacanth will be at Level 18 when you fight it so level up yourself and your party to be at least Level 17.
Prepare During The Hostile Encounter Main Quest
Take note that players cannot adjust their party or visit their camps during The Northern Meridian Main Quest all the way to when the Rangers enter the new region. It is best to prepare your party with these considerations during the latter part of The Hostile Encounter Main Quest.
Bring Items or Have Genes That Cure or Prevent Paralysis
The Feral Somnacanth's Thunder type attacks may cause your allies to be paralyzed so bring items like Paracare to cure them if it happens. Your Monsties can also have the Antiparalysis Gene to avoid them from being affected by paralysis.
Equip Thunder Resistant Gear and Fire or Ice Type Weapons
The Feral Somnacanth mainly uses a strong Thunder type attack so it is recommended to equip Thunder resistant gear like the Kadachi Armor.
Additionally, players can equp Fire or Ice Type weapons like the Arko Nulo-White or the Vicello Nulo-Red to take advantage of the Feral Somnacanth's elemental weaknesses.
Do Not Attack Its Stomach When It Is in the Balancing States
Make sure to avoid attacking its stomach during its Balancing or Balancing (Storing Powder) State as it will retaliate with a strong attack, Backlash (Para).
Deplete Wyvernsoul after It Uses Feral Plasma Cannon
Although the Feral Plasma Cannon will greatly damage your team, the Feral Somnacanth also applies Wyvernsoul Def Down to itself. This is a great opening to focus your attacks when depleting its Wyvernsoul.
Break the Wyvernsoul Gauge During the Balancing State
To avoid the Feral Somnacanth from using its Sleep Powder Spray, try to break the Wyvernsoul Gauge when it is in its Balancing State by using the appropriate weapon damage type or Wyvernsoul depleting skills.
How to Fight Feral Somnacanth
Fought During the Forbidden Ground Main Quest
The Feral Somnacanth is encountered during the main quest, Forbidden Ground. At this point in the story, the group of rangers arrive at Canalta Timberland after passing through the Wyverian Gate and encounter the Feral Somnacanth in an open field.
Monster Hunter Stories 3 (MHS 3) Related Guides
Main Mission Bosses
| All Main Mission Bosses | |
|---|---|
| Azuria (Chapter 1) | |
 Honed Glavenus |
 Invasive Yian Garuga |
 Dual Feral Velocidromes |
 Feral Gypceros |
 Magnamalo |
- | Cataracts (Chapter 2) |
 Feral Great Izuchi
|
 Invasive Arzuros |
Feral Somnacanth |
 Feral Aknosom |
 Yama Tsukami |
- |
| Galyad (Chapter 3) | |
 Feral Ajarakan |
 Feral Rakna-Kadaki |
 Rey Dau |
- |
| Seranthis (Chapter 4) | |
 Feral Blangonga |
 Goss Harag |
 Malzeno |
 Arkveld |
 Bound Azure Rathalos |
 Bound Lunagaron |
 Aenshin |
|
Invasive Monster Bosses
| All Invasive Monster Bosses | |
|---|---|
| Invasive Yian Garuga |
 Invasive Seregios |
 Invasive Plesioth |
Invasive Arzuros |
 Invasive Nerscylla |
 Invasive Shogun Ceanataur |
 Invasive Diablos |
 Invasive Odogaron |
 Invasive Khezu |
- |
Feral Monster Bosses
| List of All Feral Monsters | |
|---|---|
 Feral Nerscylla |
 Feral Brachydios |
 Feral Tobi-Kadachi |
 Feral Glavenus |
 Feral Bishaten |
 Feral Espinas |
 Feral Paolumu |
- |
Elder Dragon Bosses
| List of All Elder Dragon Bosses | |
|---|---|
 Namielle |
  |
 Yama Tsukami (Green) |
 Velkhana |
| Aenshin |
- |
Exotic Monster Bosses
| List of All Exotic Monster Bosses | |
|---|---|
 Exotic Seregios |
 Exotic Velocidrome |
Optional Bosses
| List of All Optional Bosses | |
|---|---|
 Espinas
|
- |
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