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

      27 Oct 2020 20:37  

      JEBUS please read this
      i look up to you not as a helper but as a god you have inspired me to help hunters on there journey but i just want you to know that you are a huge part of of the greater good of mhw i will always remember the chats that you posted they where really helpful to me and to other hunters i hope you have fun being a god and i hope you get this letter soon but just so you know i am inspired i love you JEBUS as a friend - Smart Guy

      • 15 Oct 2020 00:41  

        I have done IT!!! I have slayed him. And hooo boi it was a tough fight WITH elfuivia resistance. You defenitly want that. I would recomend Acidic Glavenus head because 1 some people are already farming him due to his weapons. and most people have at least 1 miasma jewel so those two together give level 3

        • Anonymous

          31 Aug 2020 03:01  

          I did him in today with a maxed Glavenus glaive. 5 mounts and going ape**** when he drops. It was a thing of beauty. 40 minutes of intense combat, no carts.
          Everybody takes a blast bug, but I swear by my healcloud bug

          • Anonymous

            11 Aug 2020 19:49  

            Went in without effluvia resistence, died in the first 3-5 mins. Got the resistence, didnt die once, easiest eldr dragon so far for me.

            • Anonymous

              29 Jul 2020 07:22  

              The pulsating spore clumps that appear when enraged are not armored well, you can deal better damage if you focus on them. Most of him is armored, a clutch attack is very useful to soften him up. Thankfully there is a spore patch at the start of his tail, makes cutting it easier,

              • Anonymous

                28 Jul 2020 05:18  

                I wonder what got this elder dragon in the ancient forest in the first place? Ya know he was a real pain when ifirst fought him know... effluvium X2. but now he's just fun and his armor is cool, espacially the head which is just a skull. Credit to capcom and the smithy

                • Anonymous

                  19 Jul 2020 05:45  

                  Intesting that it's not in the wiki but this dragon has another attack with its "smoke".

                  If you or other creatures are covered in its smoke while its sucking the smoke back in, you will die while in range. The monsters will also die. I'm not sure if this is it's way of eating while hurt so it can heal or just a secondary attack though.

                  • 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

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