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A Vaal Hazak variant encrusted with spores that spew a torrent of toxic effluvium at any who draw close.
- MHWI Description

Blackveil Vaal Hazak is a Variant of Vaal Hazak, first introduced in Monster Hunter World: Iceborne.


Blackveil Vaal Hazak is similar to its counterpart in terms of general appearance. The main difference is that it's covered in strange moss-like pustules that emit Effluvium constantly. These pustules even go as far to cover its head, rendering it blind. Should they be removed/broken however, it is able to see again. Contrasting regular Vaal Hazak's dark red and silver coloring, Blackveil is a green and milky-white coloring.

Behavior and Abilities

Blackveil Vaal Hazak is a passive monster, that only attacks when provoked. Like its counterpart, it mainly uses its Effluvium as a form of attack, but also as a form of finding prey and infecting other monsters. The moss that grows on its body can be spread about to infect not just monsters but its surrounding area as well, transforming the environment into its ideal area of operation. One can tell if a Blackveil Vaal Hazak is near if the air is shrouded in a thick green fog of effluvial spores. The pustules seemed to have changed its breath from the stream of concentrated Effluvium into a smog-like gas that can adhere to the ground temporarily.

Game Appearances

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Main Series


  • None


  • None

In-Game Descriptions

Monster Hunter World: Iceborne
MHWI-Blackveil Vaal Hazak Icon.png A Vaal Hazak variant encrusted with spores that spew a torrent of toxic effluvium at any who draw close.

Element/Status Effectiveness

Element Effectiveness Status Effectiveness
Fire ★★ Poison
Water Sleep
Thunder Paralysis
Ice Blast ★★
Dragon ★★ Stun


For more images, see Blackveil Vaal Hazak Photo Gallery


General Notes

  • Blackveil Vaal Hazak replaces the standard Vaal Hazak in Master Rank.
  • Blackveil Vaal Hazak's power-up mode differs from the regular species in which it uses Effluvium to rejuvenate the moss clusters on its head, torso and tail, instead of merely casting an Effluvial aura.
    • When rejuvenated, these mosses will puff out volatile Effluvium gas that does considerable damage while still able to infect hunters who aren't immune.
    • The puffing becomes increasingly violent during several of the dragon's attacks, making up-close onslaught dangerous.
    • Dousing the power-up will wither the mosses, rendering them harmless until rejuvenated again.
  • When left powered-up long enough, Blackveil Vaal Hazak will execute its ultimate attack where the mosses around its body swells and puff out lingering high concentration of Effluvium gas on random spots within the area.
  • Initially, it is immune to flash pods due to moss covering its eyes. Only after the head is broken do the eyes become exposed and it becomes vulnerable to flash pods.
  • Hunters who wish to avoid the slow AOE Ground Breath need only to clutch onto Blackveil Vaal Hazak's chest or forelegs, as doing so before it begins its attack renders you immune.
  • Blackveil Vaal Hazak can also perform a sweeping breath attack going from left to right, instead of right to left, like the standard species.
    • You can predict this by listening to the noise it will make, with the standard beam, you will hear Blackveil roar, and with the new attack, you can hear a whistling inhale sound.

Monsters appearing in Monster Hunter World: Iceborne (edit)
Herbivore MHWI-Anteka Icon.png Anteka MHW-Apceros Icon.png Apceros MHW-Aptonoth Icon.png Aptonoth MHW-Gastodon Icon.png Gastodon MHW-Kelbi Icon.png Kelbi MHW-Kestodon Icon.png Kestodon MHW-Mosswine Icon.png Mosswine MHWI-Popo Icon.png Popo
Fish MHW-Gajau Icon.png Gajau
Lynian MHWI-Boaboa Icon.png Boaboa MHW-Felyne Icon.png Felyne MHW-Gajalaka Icon.png Gajalaka MHW-Grimalkyne Icon.png Grimalkyne
Fanged Beast MHWI-Rajang Icon.png Rajang MHWI-Furious Rajang Icon.png Furious Rajang
Neopteron MHW-Hornetaur Icon.png Hornetaur MHW-Vespoid Icon.png Vespoid
Bird Wyvern MHW-Kulu-Ya-Ku Icon.png Kulu-Ya-Ku MHW-Pukei-Pukei Icon.png Pukei-Pukei MHWI-Coral Pukei-Pukei Icon.png Coral Pukei-Pukei MHW-Tzitzi-Ya-Ku Icon.png Tzitzi-Ya-Ku MHWI-Yian Garuga Icon.png Yian Garuga MHWI-Scarred Yian Garuga Icon.png Scarred Yian Garuga
Brute Wyvern MHW-Anjanath Icon.png Anjanath MHWI-Fulgur Anjanath Icon.png Fulgur Anjanath MHWI-Banbaro Icon.png Banbaro MHW-Barroth Icon.png Barroth MHWI-Brachydios Icon.png Brachydios MHWI-Raging Brachydios Icon.png Raging Brachydios MHW-Deviljho Icon.png Deviljho MHWI-Savage Deviljho Icon.png Savage Deviljho MHWI-Glavenus Icon.png Glavenus MHWI-Acidic Glavenus Icon.png Acidic Glavenus MHW-Radobaan Icon.png Radobaan MHW-Uragaan Icon.png Uragaan
Fanged Wyvern MHW-Girros Icon.png Girros MHW-Jagras Icon.png Jagras MHW-Shamos Icon.png Shamos MHWI-Wulg Icon.png Wulg
MHW-Dodogama Icon.png Dodogama MHW-Great Girros Icon.png Great Girros MHW-Great Jagras Icon.png Great Jagras MHW-Odogaron Icon.png Odogaron MHWI-Ebony Odogaron Icon.png Ebony Odogaron MHW-Tobi-Kadachi Icon.png Tobi-Kadachi MHWI-Viper Tobi-Kadachi Icon.png Viper Tobi-Kadachi MHWI-Zinogre Icon.png Zinogre MHWI-Stygian Zinogre Icon.png Stygian Zinogre
Piscine Wyvern MHWI-Beotodus Icon.png Beotodus MHW-Jyuratodus Icon.png Jyuratodus MHW-Lavasioth Icon.png Lavasioth
Wingdrake MHW-Barnos Icon.png Barnos MHWI-Cortos Icon.png Cortos MHW-Mernos Icon.png Mernos MHW-Noios Icon.png Noios MHW-Raphinos Icon.png Raphinos
Flying Wyvern MHWI-Barioth Icon.png Barioth MHWI-Frostfang Barioth Icon.png Frostfang Barioth MHW-Bazelgeuse Icon.png Bazelgeuse MHWI-Seething Bazelgeuse Icon.png Seething Bazelgeuse MHW-Diablos Icon.png Diablos MHW-Black Diablos Icon.png Black Diablos MHW-Legiana Icon.png Legiana MHWI-Shrieking Legiana Icon.png Shrieking Legiana MHWI-Nargacuga Icon.png Nargacuga MHW-Paolumu Icon.png Paolumu MHWI-Nightshade Paolumu Icon.png Nightshade Paolumu MHW-Rathalos Icon.png Rathalos MHW-Azure Rathalos Icon.png Azure Rathalos MHWI-Silver Rathalos Icon.png Silver Rathalos MHW-Rathian Icon.png Rathian MHW-Pink Rathian Icon.png Pink Rathian MHWI-Gold Rathian Icon.png Gold Rathian MHWI-Tigrex Icon.png Tigrex MHWI-Brute Tigrex Icon.png Brute Tigrex
Elder Dragon MHWI-Alatreon Icon.png Alatreon MHW-Behemoth Icon.png Behemoth MHWI-Fatalis Icon.png Fatalis MHW-Kirin Icon.png Kirin MHW-Kulve Taroth Icon.png Kulve Taroth MHW-Kushala Daora Icon.png Kushala Daora MHW-Lunastra Icon.png Lunastra MHWI-Namielle Icon.png Namielle MHW-Nergigante Icon.png Nergigante MHWI-Ruiner Nergigante Icon.png Ruiner Nergigante MHWI-Safi'jiiva Icon.png Safi'jiiva MHWI-Shara Ishvalda Icon.png Shara Ishvalda MHW-Teostra Icon.png Teostra MHW-Vaal Hazak Icon.png Vaal Hazak MHWI-Blackveil Vaal Hazak Icon.png Blackveil Vaal Hazak MHWI-Velkhana Icon.png Velkhana MHW-Xeno'jiiva Icon.png Xeno'jiiva MHW-Zorah Magdaros Icon.png Zorah Magdaros
Relict MHW-Leshen Icon.png Leshen MHW-Ancient Leshen Icon.png Ancient Leshen