Invasive Nerscylla Location and How to Beat
This is a guide to repelling the Invasive Nerscylla in Monster Hunter Stories 3 (MHS 3). Learn the puzzle mechanics for repelling the Invasive Nerscylla and the necessary steps you need to take to beat the boss.
| Variants |
 Nerscylla |
 Feral Nerscylla |
 Invasive Nerscylla |
|---|---|---|
 Shrouded Nerscylla |
||
Invasive Nerscylla Location
Found Southeast of Blessing Hill
The Invasive Nerscylla is found on the basin of a hidden waterfall on Blessing Hill of Canalta Timberland.
Jump Through the River Leading to The Hidden Area
| World View | Map View |
|---|---|
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To reach the area if Invasive Nerscylla, you need a flying monster to get to an opening between two hills separated by a river. Simply reach the one indicated on the map view, and fly on over to the section indicated in the world view!
How to Repel Invasive Nerscylla
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1. Bring a Gunlance With Wyvernfire or Wyvern's Blaze 2. Wait Until it Behaves Differently 3. Use the Gunlance's Wyvernfire When it Attacks |
Invasive Battle Clues - Bring a Gunlance With Wyvernfire or Wyvern's Blaze
| Clue | |
|---|---|
| 1. | Seems like this monster has some mighty jaws. A gunlance shield might stop it, though... |
| 2. | Pierce, you say... Sounds like a gunlance may be up to the task? |
| 3. | We'll have to deal huge damage with all the firepower we can muster in that instant. |
The main clue with all of this is to bring a Gunlance with explosive firepower. This can be easily done by getting a decoration from the Melynx Emporium!
Wait Until it Behaves Differently
For the brunt of the fight, the Invasive Nerscylla will remain in stealth, causing you to miss your attacks. During this time, simply complete the Head-to-Head attacks while preserving your Stamina. It will only use Technical Attacks, so answer with Power Attacks!
Use the Gunlance's Wyvernfire or Wyvern's Blaze When it Attacks
When it extends its mandibles, the Invasive Nerscylla will always target you. Use either Wyvernfire or Wyvern's Blaze when you see the red line tracing to your Rider. Doing so should repel the Invasive Nerscylla, allowing you to enter the Endangered Den
Rewards for Repelling Invasive Nerscylla
Obtain Nargacuga
The reward for repelling the Invasive Nerscylla is an endangered Nargacuga Egg. This gives you the option to keep the hatched Nargacuga as a party member or release it on a region via Habitat Restoration to populate the map with Nargacuga to hunt.
How to Get Nargacuga and Weaknesses
Invasive Nerscylla Boss Weaknesses and Resistances
Invasive Nerscylla Damage Type Weaknesses
| Body Part |  Slash |
 Pierce |
 Blunt |
|---|---|---|---|
| Head | ✕ | ◯ | ✕ |
Note that some monsters change weaknesses and resistances when they transform.
Invasive Nerscylla Ailment Resistances
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Invasive Nerscylla Elemental Resistances
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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
|
- |
Author
Monster Hunter Stories 3: Twisted Reflection Walkthrough & Guides Wiki
Invasive Nerscylla Location and How to Beat
Rankings
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Under the "Wait Until it Behaves Differently" section, it tells you to use a Speed attack to win the head-to-head, but that's incorrect as Technical beats Speed. You'll want to use a Power attack instead! Other than that, this helped me beat Invasive Nerscylla first try with the Gunlance heads up :)