Blackveil Vaal Hazak

Enemy Type

Large Monsters

Species Elder Dragons
Elements None
Ailments effluvialbuildupsmallEffluvial Buildup
Weakness mhw-fire-damageFire ⭐⭐
mhw-dragon-damageDragon ⭐⭐
Resistances mhw-water-elemental-damage_sWater (immune)
mhw-thunder-damage_sThunder ⭐
mhw-ice-damage_sIce ⭐
Location(s) Ancient Forest
Rotten Vale
Tempered Lv. 3

Blackveil Vaal Hazak is a Large Monster in Monster Hunter World (MHW). 死を纏うヴァルハザク (shi wo matou vuaruhazaku) in Japanese. It is a variant of Vaal Hazak.


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

Blackveil Vaal Hazak Details & Locations


Blackveil Vaal Hazak Combat Info

  • Kinsect Extracts:
    • Red: Head
    • Orange: Body/Spore Sacs
    • White: Wings/Legs
    • Green:  Tail
  • Attacks:
    • Slap: Slaps you with its front legs at close range.
    • Charge: Lets out a short roar and charges forward surprisingly fast. Deals heavy damage, knocks you back and can stun.
    • Bite: Swings its head in a sweeping motion to try to bite you. Moves forward slightly during the bite. It may follow up the bite with up to two more bites.
    • Tail Sweep: Uses its tail to knock you back and potentiallly stun you.
    • Spin: Turns its entire body 180 degrees, knocking anyone back caught by it. May follow it up with a tail sweep.
    • Wild Effluvium Beam: Gathers power for a short duration to shoot a beam of effluvia in a very erradic pattern. Deals high damage, can stun.
    • Sweeping Effluvium Beam: Gathers Effluvium to sweep a fan shaped area in front of him with a continuous beam. Heavy damage, can stun.
    • Downward Effluvium Beam: Gets up on his hind legs and gathers Effluvium to shoot the beam down right at its feet. Clouds of Effluvium will disperse from the center in multiple directions, dealing moderate damage and knocking you back on contact.
    • Retreating Effluvium Spew. Moves backwards while spewing clouds of effluvium. Deals high damage and knockback up close, deals chip damage at longer distances.
    • Advancing Effluvium Beam: Slowly moves forward, sweeping the area in front of him with a beam of Effluvium.
    • Effluvial Aura: It is constantly surrounded by an aura of Effluvium, dealing chip damage up close. Can be dispelled with an Elderseal weapon.
    • Spore Clouds: The fungal growths on its body will periodically spit spores in all directions, dealing high chip damage. If his effluvial aura was dispelled, the fungal spit will stop too.
    • Recover: Stands up on its hind legs and gathers all his lost Effluvium. If not interrupted, he will regain his Effluvium aura and regrow all its Fungi.
  • Enraged mode: It stands up on its hind legs and roars while gathering its Aura of Effluvium. It then proceeds get back on all four feet, dealing minimal damage but knocking you back.

    • Generally raises his attack speed and frequency.
    • The fungi on his body will shoot more spores.
    • Gains a unique attack where he jumps in the air and shoots spores everywhere. Covers a large area in Spore Clouds.
  • The Fungal patches on its body can be broken.
  • Effluvia Resistance 3 will prevent your health from being cut in half, also consider Nulberries if you can't fit Effluvia Resistance into your build.
  • Is immune to flash effects until the spores coating its head are broken
  • Repeatedly using the Slinger Burst to slam him into a wall will eventually result in a head break.


Blackveil Vaal Hazak Weaknesses

Each ⭐star shown below represents more weakness to each ailment

Ailment mhw-poison-status-effect sleep-mhw-status-effect paralysis blast stun
Weakness Level ⭐⭐


Each ⭐star shown below represents more weakness to each damage type

Weak Point cut-damage-mhw blunt-damage-mhw ammo-damage-mhw
Head (Breakable) ⭐⭐⭐ ⭐⭐⭐ ⭐⭐⭐
Forelegs (Breakable) ⭐⭐⭐ ⭐⭐ ⭐⭐
Tail (Severable) ⭐⭐


In-game weakness information



Blackveil Vaal Hazak Master Rank Carves

Defeating this monster allows the player to carve the following items:

Blackveil Vaal Hazak Carves

Carves Frequency %
deceased_shard-mhw-wiki-guide-smallDeceased Shard (Dropped / Tail Carved) Master Rank 33% (28% / 22%)
vaal_hazak_cortex-mhw-wiki-guide-smallVaal Hazak Cortex Master Rank 22%
vaal_hazak_hardclaw-mhw-wiki-guide-smallVaal Hazak Hardclaw Master Rank 18%
shadowpierce_fang-mhw-wiki-guide-smallShadowpierce Fang Master Rank 14%
vaal_hazak_fellwing-mhw-wiki-guide-smallVaal Hazak Fellwing Master Rank 9%
bazelguese_flail-mhw-wiki-guide-smallVaal Hazak Flail (Tail Carved only) Master Rank 75%
deathweaver-membrane-mhw-wiki-guide-smallDeathweaver Membrane (Dropped only) Master Rank 50%
vaal_hazak_gem_small-mhw-wiki-guideVaal Hazak Gem Master Rank 5%
large-elder-dragon-gem-mhw-wiki-guide-smallLarge Elder Dragon Gem (Tail Carved) Master Rank 2% (3%)


Blackveil Vaal Hazak Rewards

Rewards Frequency %
deceased_shard-mhw-wiki-guide-smallDeceased Shard Master Rank 30%
vaal_hazak_cortex-mhw-wiki-guide-smallVaal Hazak Cortex (Break Forelegs) Master Rank 22% (20%)
vaal_hazak_hardclaw-mhw-wiki-guide-smallVaal Hazak Hardclaw (Break Forelegs) Master Rank 14% (80%)
vaal_hazak_fellwing-mhw-wiki-guide-smallVaal Hazak Fellwing (Break Chest) Master Rank 11% (70%)
shadowpierce_fang-mhw-wiki-guide-smallShadowpierce Fang (Break Head) Master Rank 8% (66%)
deathweaver_membrane-mhw-wiki-guide-smallDeathweaver Membrane (Break Head/Chest) Master Rank 9% (32% / 30%)
vaal_hazak_flail-mhw-wiki-guide-smallVaal Hazak Flail (Tail Carved) Master Rank 8%
vaal_hazak_gem_small-mhw-wiki-guideVaal Hazak Gem Master Rank 5%
large-elder-dragon-gem-mhw-wiki-guide-smallLarge Elder Dragon Gem (Break Head) Master Rank 2% (2%)
elder-dragonvein-bone-mhw-wiki-guide-small Elder Dragonvein Bone Master Rank 63%
large_elder_dragon_bone-mhw-wiki-guide-smallLarge Elder Dragon Bone Master Rank 8%
pure_dragon_blood-mhw-wiki-guide-smallPure Dragon Blood Master Rank 12%
twilight-fang-mhw-wiki-guideTwilight Fang Master Rank 37%
elder-spiritvein-bone-small-mhw-wiki-guideElder Spiritvein Bone Master Rank 33%
tempered-twilight-fang-small-mhw-wiki-guideTempered Twilight Fang Master Rank 64%
great-spiritvein-gem-mhw-wiki-guideGreat Spiritvein Gem Master Rank 3%

Blackveil Vaal Hazak Weapons & Armor

Armor and Weapons related to the Blackveil Vaal Hazak Monster. These are unconfirmed and pre-release information for now!





Notes & Trivia

  • It is known as the "Smoke Effluvium Corpse Coating Dragon".
    • As of now, it has the longest title out of any monster in the game.
  • Can fly, but curiously only does when you mount it.





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    • Anonymous

      05 Jun 2020 04:38  

      FYI, Effluvial Expert does not work against him. You’ll have to build lvl3 Effluvia Resistance. I went in the assign quest with clearmind charm thinking I’ll destroy this thing. Ended up beating him after 35 min, two carts, and a ton of nullberry & potions

      • Anonymous

        24 May 2020 04:25  

        another way to beat this guy - ask an hh user that has access to all ailments negated horns. then you can go ham on it.

        • Anonymous

          16 Apr 2020 22:45  

          To echo an older comment regarding randos who are too cool for effluvia resistance: on a no-faints allowed tempered blackveil investigation yesterday, someone proceeded to cart via spore puff, *as vaal was limping away to sleep*. Their full green health bar disappeared faster than I could blink. Christ people, the fellshroud greaves alone provide a two spot effluvia resistance. Use it.

          • Anonymous

            09 Apr 2020 08:21  

            Somebody looked at Vaal Hazak, and said: 'this rotting, diseased zombie dragon is just not disgusting enough... what if we put spores on it?'

            • Anonymous

              03 Apr 2020 12:47  

              Where'd that smoke thing name even comes from? His Japanese title translates to Death-Clad Vaal Hazak, his epithet: Decrepit Corpse Dragon.

              • Anonymous

                30 Mar 2020 13:11  

                The dragon weakness is honestly a trap. Real weak are just the spore sacks (0,2) and tail and wings (0,15). Head, stomach and back are immune to dragon dmg until broken, after that they are really weak (0,25). Same goes for legs (0,05 goes to 0,2). I also would advise to use a melee weapon since the ranged hitzone values are utter trash apart from the head (unbroken 0,5/ broken 0,6) and maybe the sporesacks (0,45). Fire dmg hitzone values are ok, almost everything is around 2 stars (0,15 to be exact), even unbroken (head, back and stomach going up to 0,2 when broken). Tl;dr: Use raw dmg

                • Anonymous

                  27 Mar 2020 14:02  

                  I used the dual blades cald twin flames they do fire And poisen damage and if i hit IT on these mossy things IT doen 52 minimum damage

                  • Anonymous

                    01 Mar 2020 16:58  

                    QUESTION: Is there any repeatable quest to farm this monster? I finished the assigned one but cant find any optional ones.

                    • Anonymous

                      03 Feb 2020 02:26  

                      Why do people enter this fight without effluvia resistance? Why? Miasma gems turns this fight from a tightrope into a cakewalk, but it seems like a good 2/3 of the randos I run into are like "nah bro, I'm too cool for this whole 'surviving' thing. That's not nearly as important as my awesome smack-other-players-while-whiffing-true-charged-slash DPS!" My eyes burn when a dude with 1/4 of his health charges in to attack the tail while it's poison puffing. But I guess it's my fault for SOS'ing, too. Oh well.

                      • Anonymous

                        29 Jan 2020 13:50  

                        Destroyed it first time on forest without effluvial resistance with one m8, probably because i stick around it and theres a hammer aside keep KO it so i can dps. it destroyed me back the second time i fight it.

                        • Anonymous

                          14 Jan 2020 03:30  

                          I swear, I was losing my***** after 3 attempts, twice with my main weapon, the lance, once with my off-main weapon, bow. He completely *****ed me, besides the bow attempt, in which I died my third time on the literal 50th minute (I quit to not lose my wasted items). Then I put in 3 Effluvia gems into my armor, and suddenly I have no problems whatsoever with my lance. Aside from the Large Elder Dragon Gem I need, I could make two whole sets of his armor now, really recommending to try getting effluvia debuff resistance slotted if anyone has problems, might help!

                          • Anonymous

                            10 Nov 2019 21:23  

                            Why has none of the comments OR the page itself mentioned that when you get hit by it's Effluvium attacks, you can become a FREAKING ZOMBIE?

                            • Anonymous

                              03 Nov 2019 07:52  

                              Not sure if this dude's just blind and deaf cuz most of his body is rotted away, but I love how nonagressive he is. He also reminds me a lot of Chameleos

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