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Invasive Arzuros Location and How to Beat

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Invasive Arzuros Banner
This is a guide to repelling the Invasive Arzuros in Monster Hunter Stories 3 (MHS 3). Learn the puzzle mechanics for repelling the Invasive Arzuros and the necessary steps you need to take to beat the boss.

Variants
Arzuros
Arzuros 		Invasive Arzuros
Invasive Arzuros

List of Contents

Invasive Arzuros Location

Found in Blessing Hills; South Area of Canalta Timberland

World View Map View
Invasive Arzuros Location Overworld
Invasive Arzuros Location Map

The Invasive Arzuros is the main target monster needed to progress the game, it will be marked on the Blessing Hills south of the Canalta Timberland area during the Ward mission.
Main Story Full Walkthrough

How to Repel Invasive Arzuros

1. Invasive Battle Clues
2. Take Out the Small Arzuros

Invasive Battle Clues

Clue
1. What huge tracks! And that sweet smell. Is that...honey?
2. There are small prints around here, and lots of them. Are they moving in a group?
3. This sweet smell from big and tiny prints... Could honey be integral to their way of life?

The clues for the invasive tracks point to honey, which the Invasive Arzuros uses to call for allies. Deplete its honey by repeatedly eliminating the Arzuros it calls for backup.

Take Out the Small Arzuros

Small Arzuros

The key to repeling the Invasive Arzuros is to make it run out of honey. However, its main moveset cannot be prevented easily. Since the Arzuros requires honey to summon new Arzuros, eliminating them and making the Invasive Arzuros summon new smaller Arzuros will cause it to run out of Honey mid-fight.

Invasive Arzuros Boss Weaknesses and Resistances

Invasive Arzuros Damage Type Weaknesses

Body Part SlashSlash Pierce SoloPierce BluntBlunt
Main Body ◯ ◯ ◯
Head ✕ ◯ ✕
Torso ✕ ✕ ◯
Legs ◯ ✕ ✕

Note that some monsters change weaknesses and resistances when they transform.

Invasive Arzuros Ailment Resistances

Poison Burn Paralysis Sleep Blastblight Bleeding Darkness
text text text text text text text

Invasive Arzuros Elemental Resistances

Non-Elemental Fire Water Thunder Ice Dragon
text text text text text text

Invasive Arzuros Attack Patterns and Behavior

Attack Behavior

Normal Power
Invading Technical.png
Enraged Speed.png

Normal State

Turn Skills Used
1
Invasive Arzuros: PowerPower Attack
Arzuros: PowerPower Attack
2
Invasive Arzuros: PowerPower Attack
Arzuros: PowerPower Attack
Will shift to the Invasive State
3 From the Invasive or Enraged States
Invasive Arzuros: PowerPower Attack
and Honey Snack (Healing Move)
4 Wild Breaker (Single Target) and Plaintive Bellow (Atk or Def)

The Invasive Arzuros will start out in the Normal State where it will fight alongside summoned Arzuros allies and unleash Power Attacks. Later on, it will use a strong single target skill Wild Breaker which can apply Defense Down to the target.

Within these turns, the Invasive Arzuros can use status or healing skills like Honey Snack or Plaintive Bellow. Note that these skills are paired within moves the Invasive Arzuros uses and do not take up one full turn.

Invading State

Turn Skills Used
1 From the Normal State
Invasive Arzuros: Honey Call (If other Arzuros have been defeated)
Arzuros: PowerPower Attack
2 From the Normal State
Invasive Arzuros: Wild Breaker and Plaintive Below (Atk or Def)
Arzuros: PowerPower Attack
3 Honey Call and Plaintive Bellow (Atk or Def)
4 Invasive Arzuros: Honey Snack
Arzuros: PowerPower Attack
Will Switch to Enraged State
5 Wild Breaker and Plaintive Bellow (Atk or Def)
6 Honey Call and Honey Claw (Strong AoE Attack)
Will shift back to the Normal State

In its Invasive State, the Invasive Arzuros will not change its attack pattern much from the Normal state as it will use similar attacks.

However, with enough honey the Invasive Arzuros will unleash its strongest AoE attack, Honey Claw at the end of this state.

Enraged State

Turn Skills Used
0 From the Invasive State
Woe and Plaintive Bellow (Atk or Def)
1 Wild Breaker
2 Wild Breaker

In its Enraged state, the Invasive Arzuros will shift to this state by using Woe and Plaintive Bellow. This will not take up a turn.

It will also primarily use the single target skill, Wild Breaker during this state.

How to Beat Invasive Arzuros

Check iconRecommended Level is at least 68
Check iconBring Fire and Debuff Applier Monsties
Check iconInflict Ailments and Accuracy Debuffs
Check iconUse AoE Fire Skills
Check iconInvite Eleanor or Thea
Check iconWatch Out for Its Stat Boosts
Check iconSkip Wild Breaker

Recommended Level is at least 68

The Invasive Arzuros will be at level 70 when you fight it so make sure you are at least Level 68 as this will be a difficult fight with multiple enemies appearing on the battlefield.

EXP Guide: How to Level Up Fast

Bring Fire and Debuff Applier Monsties

Espinas iconEspinas Brute Tigrex iconBrute Tigrex Malzeno iconMalzeno Dreadqueen Rathian iconDreadqueen Rathian

The Invasive Arzuros will be very weak to Fire element skills so Espinas makes for a perfect choice during this fight. Additionally, players can add Dreadqueen Rathian to their party for ailment application.

Monsties like the Malzeno and Brute Tigrex also have strong stats as well as being able to apply debuffs to counter when the Arzuros boosts its own Attack and Defense.

List of All Monsties (Monster List)

Inflict Ailments and Accuracy Debuffs

Apply Ailments and Debuffs
Make use of Invasive Arzuros' weaknesses for all ailments by applying those that deal damage over time Burn or Poison. Additionally, applying the Darkness ailment alingside inflicting the Accuracy Down debuff will increase the chances of avoiding damage from the boss' attacks.

Players can apply these debuffs and ailments with weapon skills like Accuracy Down Coating from bows or Monstie skills like Flash.
List of All Weapons

Use AoE Fire Skills to Defeat the Summoned Arzuros

Use AoE Skills
Both the Invasive Arzuros and the Arzuros it summons are very weak to Fire. To avoid receiving additional damage from the Arzuros and to deplete the Ivasive Arzuros' Honey, similar with the process of repelling it, use AoE Fire attacks to damage both enemies.

The Invasive Arzuros will be more likely to use up its turn by using Honey Call to summon more Arzuros to its side, instead of a damage based move. Players can also opt to use Thunder or Ice AoE skills as both enemies are weak to those elements as well.
All Skills Types

Invite Eleanor with Her Glavenus or Thea with Her Tobi-Kadachi

Invite Thea or Eleanor
Invite Eleanor with her Glavenus Dee, as they will be able to inflict strong AoE Fire skills, which will be helpful in damaging both the Invasive Arzuros and the Monsters it summons. Note however that, Dee, will only be unlocked as Eleanor's partner Monstie after her 4th Side Story.

Players can also select Thea as an ally, alongside her Tobi-Kadachi, as they can inflict paralysis as well as unleash AoE Thunder skills which the boss is also weak to.
List of All Characters and Companions

Watch Out for Its Stat Boosts

Watch out for Stat Boosts
Every now and then, the Invasive Arzuros will unleash Plaintive Bellow which will either boost its Attack or Defense. Counter this by using Monstie Skills that reduce these stats. For example, Brute Tigrex can reduce an opponent's defense with Savage Fist while Malzeno can reduce the attack stat by using Nightmare Cradle.

Use AoE Kinship Skills to Avoid the Boss' Honey Attack

Honey Claw is a very strong AoE move that Invasive Arzuros will use at the end of its Invasive State usually. Anticipate the move and use an AoE Kinship Skill to stop the enemy from inflicting it. Players can equip their Monsties with Solar Cry to fill up the Kinship Gauge faster and use it more often.
How to Use Kinship Skills

Invasive Arzuros Rewards

Obtain Canyne Egg After Repelling

Canyne

The Canyne Egg is your main reward for repelling the Invasive Arzuros. It will be hatched after you return to Sheparden and progress the story.

How to Get Canyne and Weaknesses

Two Decorations After Slaying

After slaying the Invasive Arzuros inside of the invasive den, you will be rewarded two weapon decorations, Spirit Blade (BST) and Shelling (BST).

List of All Decorations and Equipment Skills

Invasive Materials

You will also get invasive materials, like the Invasive Hide, which you can use to max out the level of your equipment each time you defeat the boss.

List of Items

Monster Hunter Stories 3 (MHS 3) Related Guides

Bosses MH Stories 3.png

List of All Bosses

Main Mission Bosses

All Main Mission Bosses
Azuria (Chapter 1)
Feral ChatacabraFeral Chatacabra Honed Glavenus
Honed Glavenus
Invasive Yian Garuga IconInvasive Yian Garuga Feral Velocidrome Icon
Dual Feral Velocidromes
Feral Gypceros IconFeral Gypceros Magnamalo Icon
Magnamalo
Cataracts (Chapter 2)
Feral Great Izuchi IconFeral Great Izuchi Invasive ArzurosInvasive Arzuros
Feral Somnacanth Icon
Feral Somnacanth		 Feral Aknosom Icon
Feral Aknosom
Yama Tsukami Icon
Yama Tsukami		 -
Galyad (Chapter 3)
Almudron IconAlmudron Feral Ajarakan Icon
Feral Ajarakan
Feral Rakna-Kadaki Icon
Feral Rakna-Kadaki		 Rey Dau IconRey Dau
Serathis (Chapter 4)
Feral Blangonga Icon
Feral Blangonga		 Goss Harag IconGoss Harag
Malzeno Icon
Malzeno		 Arkveld Icon
Arkveld
Bound Azure Rathalos Icon
Bound Azure Rathalos		 Bound Lunagaron Icon
Bound Lunagaron
Aenshin IconAenshin

Invasive Monster Bosses

All Invasive Monster Bosses
Invasive Yian Garuga IconInvasive Yian Garuga Invasive Seregios IconInvasive Seregios
Invasive PlesiothInvasive Plesioth Invasive ArzurosInvasive Arzuros
Invasive NerscyllaInvasive Nerscylla Invasive Shogun CeanataurInvasive Shogun Ceanataur
Invasive DiablosInvasive Diablos Invasive OdogaronInvasive Odogaron
Invasive KhezuInvasive Khezu -

Feral Monster Bosses

List of All Feral Monsters
Azuria
Feral Paolumu IconFeral Paolumu Feral Nerscylla IconFeral Nerscylla
Feral BrachydiosFeral Brachydios -
Canalta Timberland
Feral Tobi KadachiFeral Tobi-Kadachi Feral TetranodonFeral Tetranadon
Feral BishatenFeral Bishaten Feral Espinas.pngFeral Espinas
Tarkuan
Feral BarrothFeral Barroth Feral Gravios IconFeral Gravios
Feral GlavenusFeral Glavenus Feral DevilJhoFeral Deviljho
Serathis
Feral Legiana IconFeral Legiana Feral Magnamalo IconFeral Magnamalo

Elder Dragon Bosses

List of All Elder Dragon Bosses
Namielle Icon
Namielle
Ibushi IconNarwa Icon
Ibushi and Narwa
Green Yama TsukamiYama Tsukami (Green) Velkhana IconVelkhana
Aenshin IconAenshin Nergigante IconNergigante

Exotic Monster Bosses

List of All Exotic Monster Bosses
Exotic Seregios
Exotic Seregios 		VelocidromeExotic Velocidrome

Optional Bosses

List of All Optional Bosses
Espinas Sleep IconEspinas DeviljhoDeviljho

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