Pestilent Mist is a Sorcery in Dark Souls 3. To cast a Sorcery you must use a Staff or Special Weapons that can cast Sorceries.

Pestilent Mist

pestilent mercury
Spell Type

Sorcery

icon fp cost Focus Cost 13
icon attunement Slots Used 1
Requirements 30 Intelligence
Type Lingering AoE

 

 

Highly dangerous sorcery employed by Dragon School spooks. Only taught to trusted members.

Releases dense mist that eats away at HP. Beware, as the caster is not immune to its effect.

A body caught in the silent mist cloud lies still, while the face twists in a tortured scream. The names of these learned sorcerers became feared for this gruesome spectacle.

 

Acquired From

  •  Can be bought from Orbeck of Vinheim for 1,000 souls after giving any sorcery scroll.

 

 

Notes

  • The damage dealt is a percentage of the enemy's max HP. The higher their max HP, the more damage it will deal, making it extremely effective against certain bosses, such as Darkeater Midir.
  • Acts similar to Lifedrain Patch from Dark Souls II.
  • It deals damage to enemies and the caster alike. Anyone the caster couldn't hurt naturally (fellow covenant invaders, friendly phantoms, etc.) isn't affected however.
  • This spell doesn't deal poise damage and will not stagger an opponent.
  • Very useful in killing mob enemies such as the Deacons of the Deep or the large crowd of Jailers in the lower level of Irithyll Dungeon, when used in combination with a lure such as an Alluring Skull or Aural Decoy.
  • This spell will not aggro most enemies, but they turn around and face the cloud, with the exception of mimics.
  • Its damage was increased by 150% in the 1.08 Patch. This makes it a very deadly spell, especially due to the spell having a long lasting and large hitbox, which pretty much guarantees death for opponents stuck in tight spaces.
  • The overall damage and duration are fixed; damage boosting skills, items, rings (Crown of Dusk, Young Dragon Ring/Bellowing Dragoncrest Ring, Clutch rings, Steady Chant, etc.) do NOT work. The damage also does NOT scale with your stats. (Easily verified against any mimic). 
  • Only one Pestilent Mist per player can exist at any given time. Any number of other phantoms may cast Pestilent Mist without removing the others.
  • Note that while its picture does have the same corroded scroll appearance shared by dark spells, it still gains no scaling whatsoever even when cast with the Izalith Staff. It may be a dark spell in flavor, but it isn't in practice.
  • Since friendly summons are immune to the caster's Pestilent Mist, someone can cast the spell and let someone else lure enemies into the mist for easy damage.
  • Using this sorcery on the Dragonslayer Armour will prevent his phase 2, and grant a unique death.  For this to occur, you must not damage the boss with ANY other damage type.  You must exclusively use the mist.  This will negate the lasers & incoming projectiles.
  • If used on the Curse Rotted Greatwood, you can completely avoid him breaking the ground, entering the new arena, and thus negating stage 2 entirely.  You can break the sac on his hand, and also on his leg, but not the main ball sacs.  Breaking the main front sacs are what triggers stage 2.  With his large size, it is quite easy to keep him in the mist while circling around and dodging.  
  • It is possible to use this spell on High Lord Wolnir without waking him at all.  Upon entering the boss fog, you must go to the right, and you want to be by his wrist with the 2 bracelets.  This is his left hand, (your right) and you can stay here indefinitely without waking Wolnir.  From here, you can safely cast he spell until his health is drained.  He will never wake, and will simply die once health reaches zero while all bracelets remain.  Aiming a little higher than normal will help prevent you from standing in your cast.  If you do this correctly, you can stand there and cast every so often while otherwise not moving.  Hitting Wolnir with ANY other type of damage will wake him, so stay patient, and don't use any attacks besides the mist.
  • Important to note that the mist's damage itself doesn't cause enemies to agro onto the player meaning that if casted stealthily or on enemies such as Mimics, praying knights in Lothric castle or certain other examples(Such as the giant crystal lizard in the cathedral of the deep) the player will remain unharmed because the enemies won't attack them

 

Trivia

  • Formerly called Pestilent Mercury, the Sorcery was renamed Pestilent Mist in Patch 1.15.
Sorceries
Affinity  ♦  Aural Decoy  ♦  Cast Light  ♦  Chameleon  ♦  Crystal Magic Weapon  ♦  Crystal Soul Spear  ♦  Dark Edge  ♦  Dark Orb  ♦  Deep Soul  ♦  Farron Dart  ♦  Farron Flashsword  ♦  Farron Hail  ♦  Frozen Weapon  ♦  Great Deep Soul  ♦  Great Farron Dart  ♦  Great Heavy Soul Arrow  ♦  Great Magic Shield  ♦  Great Magic Weapon  ♦  Great Soul Arrow  ♦  Great Soul Dregs  ♦  Heavy Soul Arrow  ♦  Hidden Body  ♦  Hidden Weapon  ♦  Homing Crystal Soulmass  ♦  Homing Soulmass  ♦  Magic Shield  ♦  Magic Weapon  ♦  Old Moonlight  ♦  Repair  ♦  Snap Freeze  ♦  Soul Arrow  ♦  Soul Dart  ♦  Soul Greatsword  ♦  Soul Spear  ♦  Soul Stream  ♦  Spook  ♦  Twisted Wall of Light  ♦  White Dragon Breath



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    • Anonymous

      Playing sorcerer as a first class was a mistake, I killed dancer rather easily with this and got destroyed over and over again in lothric castle.

      • Anonymous

        I don't fully understand how this is used. Whenever I cast it the enemies just walk out of the area of effect and it's basically a waste of FP.

        • Anonymous

          This spell destroys every large or slow boss, midir, yhorm, demon king, deacons, wolnir, it makes a sorcery only build so easy.

          • Anonymous

            Halfway through 2021, still completely trivializes Wolnir.
            Not that he was not-trivial to begin with...
            Also bring Mercury back pls, thank you in advance Miyazaki.

            • Anonymous

              Mildy annoying sorcery employed by dead end job workers. Only taught to people above 18. Releases cigarette smoke that eats away at nostrils. Beware, as the caster is not immune to its effect. A body caught in the silent mist cloud lies still, while the face twists in a cough. The names of these learned sorcerers became disliked for this inconvenience.

              • I still haven't beaten the dragon called Midir yet, but a test run of this spell immediately clued me in to why many players have praised it. Holy freaking sludge.

                Too bad there's no Pyromancy equivalent.

                • Anonymous

                  This is the ultimate weapon against Midir. Since the damage doesn't scale with anything, you can equip the following for an easy fight:
                  - Ring of Favor +3
                  - Chloranthy Ring +3 and Grass Crest Shield
                  - 14-15 Estus Flasks, as the spell doesn't consume much FP

                  • Anonymous

                    This spell DOES NOT scale with spell buff, so you can cast it with anything and will still be an awesome spell.

                    • Anonymous

                      This spell helped a lot at NG+ Midir. Even my +10 lightning greatsword could not deal enough damage to him but this did.

                      • Anonymous

                        U can use this spell to kill High Lost Wolnir without even activating him. just walk up to his right arm and cast the spell and just reapeat that untill he dies.

                        • Anonymous

                          This spell safed my ass in my mage playthrough against pontiff sulyvahn. Just cast this bad boy while he summons his phantom. Will hurt him tons and kill his phantom in one cast. What a Chad of a spell.

                          • Anonymous

                            This is not waking up mimics for me, kills them in 2 casts. Fire fades edition, not updated. Not sure if it was patched. This, spook and hidden body makes everything quite easy.

                            • Anonymous

                              Lv 802. NG 120, but this spell never manages to disappoint me. Killing bosses with this sorcery is so easy, you just need to master it, I’d say a 4-8 hour practice cession would make anyone(even the one with worst reflexes) a master at using this sorcery on time, also this rings benefits heavily from rings like dusk crown ring and sage ring. Would suggest using these two rings with the spell, on PVE this thing rocks, but I don’t recommend PVP usage. I repeat, DO NOT USE THIS SPELL AS A MAIN OFFENSE SPELL IN ONLINE MATCHES. through out the whole PVP matches I played in only 2 times i could pull it off. The other good thing about this spell is although it’s just like poison and toxic it works on everymod or boss throughout the game. Absolutely amazing spell, this thing was a gift from God! Also, while in offensive stance with your high spell buff staff try to focus straight on boss’s attacks and be patient. Good luck!

                              • Anonymous

                                The background scroll is the same as the other dark sorceries, but doesn't count as one since it deals percentage health damage. It may be a reference to previous incarnations such as Lifedrain Patch, and possibly Dark Fog. There seems to be a theme of dragon school sorcerers using dark magic as inspiration to creat new sorceries, such as Homing Soulmass taking inspiration from Pursuers/Affinity.

                                • Anonymous

                                  Can be used to kill aldrich with ease, just keep running to where he spawns up and cast , then retreat and repeat!

                                  • Anonymous

                                    For all you low level sorcerers, this thing is really good against deacons of the deep, just make sure not to stand in it.

                                    • Anonymous

                                      This and Magic Shield is all you need against Midir. 100% Physical + high Dark absorbing shield in your left hand, a catalyst in your right, enough (Ashen) Estus and rings to increase defense or stamina regen. You won't need sorcery booster rings but having the Sage Ring equipped is recommended. That shield is a lifesafer, especially when Midir does his tailswipe.

                                      • Anonymous

                                        Hey, I’m still struggling to beat Havel. I’m a strength build with full Dancer set, Claymore 10+, I use no miracles nor spells. Plus a Lothric Shield +9. I’m not sure what to do, any help?

                                        • Anonymous

                                          In my oppinion, it should have a different sound and casting animation and be a pyromancy. "Pestilent" Mist. Pestilence, rot, poison, fire, etc. are all pyromancer territory, not a sorcerer's

                                          • Anonymous

                                            I used this sorcery alone to kill Curse-rotten. Didn't hit a single nutsack. The lower fight arena didn't even open until he was dead. This is a sweet sorcery.

                                            • Anonymous

                                              I wonder, does this alter the Ashes of Andariel main boss fight? It seems to change the way bosses react, as if being attacked is a requirement to set off their other phases, so would it be possible to skip one or more phases from that fight? Just food for thought. I'm sure as hell not going to try.

                                              • When attempting to cast this spell it sometimes spawns right on top of me, and at other times several feet in some random direction. What determines where the mist even shows up?

                                                • Anonymous

                                                  Extremely powerful pve spell especially if use while wearing slumbering dragon crest ring, it effectively doesn’t allow enemies to aggro and takes them down extremely quickly and has a near 100 percent chance to kill if they stay in the cloud

                                                  • Anonymous

                                                    The damage is independent from your INT. (Is that right?) and also modifiers (rings, dusk crown etc.) so how does it do more damage when you are at full hp?

                                                    • Pestilent Mercury was such a better name. Brought up alchemy comparisons, as well as making sense as Mercury is real toxic. I get the translation argument, but I do feel like the "mistranslation" actually turned out to be an improvement.

                                                      • The lowest this could damage is 10s then as the HP is higher I have seen 11 and 12 Recommended way to cast is using Sainttree Bellvine on the left hand and then two handing the staff. Bellvine is tucked in the pocket and the casting time is much better or at least good enough.

                                                        • Anonymous

                                                          just a FYI: casting this on an un-aggroed target using the slumbering dragoncrest ring prevents it from turning towards the cloud.

                                                          • Anonymous

                                                            The damage isn't always the same % of an enemies max HP. It kills some enemies in one cast, others in two, for example. Bosses take much more casts.

                                                            • Anonymous

                                                              Insanely effective against Deacons of the Deep, anything clustered, and anything, bosses included who are slow ore stationary.

                                                              • Anonymous

                                                                As of February 1st 2018, Pestilent Mist is limited to one per caster. I tested it on the Curse-Rotted Greatwood with 1 white phantom. I could not have multiple casts active at the same time but between myself and the spirit we maintained 2 active Pestilent Mists casts, 1 each. Furthermore, Pestilent Mist damaged every enemy that entered it but did not damage friendlies (friendly phantoms, host of embers, etc..). it would however damage the caster if the caster entered the mist. Also, Pestilent Mist damaged the Curse-Rotted Greatwood if ANY part of the boss touched the mist, not just its balls. During the 2 fights where I used Pestilent Mist against the Curse-Rotted Greatwood, the second phase did not trigger and drop us through the floor until the boss died.

                                                                • Anonymous

                                                                  Not like dark fog in ds2. This just creates a mist on the ground where you were standing they have to walk through. Not worth aiming for 30 int early game for this

                                                                  • Anonymous

                                                                    This spell is god tier against Old Demon King. I thought I'd use a sorcerer setup for my first time fighting him, using Izalith Staff in one hand and Pyromancy Flame in the other with Black Serpent, Farron Slashsword, Soul Greatsword, Deep Soul, Pestilent Mist, and Hidden Body (because I could) and switched between the spells depending on my distance from him and what he was doing, and the only damage I took was from my own Pestilent Mist lol.

                                                                    • Anonymous

                                                                      "It's like using a cheat in Skyrim. But it's legit. But it feels like a cheat...but it's legit! We do nothing wrong! But..." I had this discussion all game long in my head using this spell. Because it's like using a cheat in Skyrim. That is legit. But it feels like a cheat...but is legit! HELP!!! ME!!!!!

                                                                      • Anonymous

                                                                        A surprisingly effective spell that's ideal for killing many enemies that are initially dormant, like mimics.

                                                                        • Anonymous

                                                                          HEY! Do you wanna kill the dancer and Oceiros at level 40 or so? Get this spell perhaps a sages ring and if you've got it the witchtree branch staff and cast it in front of them and watch their health melt. I advise getting behind a Pillar for dancer and doing the well-known cheese for Oceiros and then you will be set quite early!

                                                                          • Anonymous

                                                                            This spell is so good as a finisher for PVP. Since the meta is virtually melee, there are people antsy enough that they walk through this spell just for the chance to get a hit at you. You cast this at running distance in front of them and they feel the clutch, which lures them in. If their HP is less than 200, even with tears of denial, they will always die. A good spell to use along with Snap Freeze.

                                                                            • Anonymous

                                                                              so nothing has been changed mechanic-wise? If that's the case, can someone please put the old name and description in the trivia?

                                                                              • this spell has definitely been nerfed and no longer deals percentual damage! At least not against Midir.. To me it does around 3/4 of my max HP and for Midir it does only like 1/6

                                                                                • Anonymous

                                                                                  you can cheese the crystal sage in the archives with this as he doesnt recognize this as a hit. He'll stay in his first position and you can get the crystal scroll at the beginning of the archives

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