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Miasma

From UO:PvE Wiki

Miasma is a monster or encounter npc. About D56–72.

Development source reviewed on 29 October 2026. In-game availability is unverified.

At a glance#

PropertyValue
ClassificationMonster or encounter NPC
DifficultyAbout D56–72
AIAI_Melee
TamingSource marks tameable
Minimum taming skill47.1
Control slots1

Attributes and damage#

AttributeValue or rangeInterpretation
Str255–847Source range
Dex145–428Source range
Int26–380Source range
Hits750–2000Source range
Mana5–60Source range
Damage20–30Source range

Resistances#

AttributeValue or rangeInterpretation
Physical50–54Source range
Fire40–45Source range
Cold50–55Source range
Poison70–80Source range
Energy40–45Source range

Damage types#

AttributeValue or rangeInterpretation
Physical60Source range
Poison40Source range

Skills#

AttributeValue or rangeInterpretation
Wrestling84.9–103.3Source range
Tactics98.4–110.6Source range
Anatomy0Source range
Magic Resist74.4–77.7Source range
Poisoning128.5–143.6Source range

Difficulty notes#

  • Freshly constructed ordinary wild creature; no paragon conversion, control/summon scaling, equipped/stat offsets, spell effects or special runtime transformations. Endless Journey expansion branches assumed. Missing skill/resistance assignments use zero. Numeric interval endpoints may not co-occur.

Loot eligibility#

Natural loot: no ordinary gold or equipment

The shared budget does not generate ordinary treasure gold or equipment for this natural-loot family. Harvest inputs and permitted separately scripted items remain separate.

Only a requested gem supplement remains eligible; natural loot suppresses generated potion and scroll supplements.

This evaluates definite source exclusions and requested themes. It does not inspect live ownership, summoned status, corpse contents or world spawns.

  • Creature is not deleted or a player.
  • Creature is not summoned, controlled or bonded.
  • Creature has no recorded owners.
  • NoKillAwards, IsInvulnerable and Blessed must all be false at generation time.
  • Ordinary loot is generated only once; existing generated gold and ordinary equipment consume that budget.

Loot and special drops#

Source calls describe requested themes, conditions and inventory. Ordinary equipment/gold are reconciled through DifficultyLoot; these calls are not additive guaranteed payouts. Runtime dispatch and conditional special rewards still apply.

Drop rules#

Loot requestInterpretationCondition
4 × Ultra Rich loot themeRequests ordinary treasure within one shared difficulty budget; repeated pack requests do not multiply the payout.No condition in extracted rule
PackLootItem(new LesserPoisonPotion())Requests a newly created themed item: Lesser Poison Potion. Ordinary equipment is rerolled at death; supply and map limits apply.No condition in extracted rule

Artifacts candidate items#

Candidate items in MondainsLegacy.Artifacts. Selection and award eligibility are separate from ordinary creature loot.

Shared ML-minor-artifact pool

ItemSelection weight or occurrences
Aegis Of Grace1
Blade Dance1
Bloodwood Spirit1
Bonesmasher1
Boomstick1
Brightsight Lenses1
Fey Leggings1
Flesh Ripper1
Helm Of Swiftness1
Pads Of The Cu Sidhe1
Quiver Of Rage1
Quiver Of Elements1
Raeds Glory1
Righteous Anger1
Robe Of The Eclipse1
Robe Of The Equinox1
Soul Seeker1
Talon Bite1
Totem Of Void1
Wildfire Bow1
Windsong1

Abilities and special attacks#

Ability definitionRuleDefined by
Get Weapon Abilityoverride WeaponAbility GetWeaponAbility() => WeaponAbility.MortalStrike;Miasma

Taming, resources and other properties#

PropertyValue
Tamabletrue
Min Tame Skill47.1
Control Slots1
Hit PoisonPoison.Lethal
Poison ImmunePoison.Greater
Treasure Map Level5
Meat1
Favorite FoodFoodType.Meat
Fame21000
Karma-21000
Virtual Armor28
Is Paragontrue
Body48
Base Sound ID397
Gives ML Minor Artifacttrue
Hit Poison Chance0.35

Matching slayers#

  • Arachnid Slayer (Super slayer)
  • Scorpion Slayer (Lesser slayer)

Notes#

  • Source type availability does not establish a live spawn, location or current world count.
  • Taming, summoned status, paragon conversion and other runtime effects can change displayed stats or progression eligibility.

Related references#

Source notes

Show 45 references

These references identify the reviewed shard files. Source presence does not establish live availability.

  1. Projects/UOContent/Mobiles/Monsters/ML/Labyrinth/Miasma.cs:6
    Type declaration
  2. Projects/UOContent/Mobiles/Difficulty/NpcDifficulty.cs:25
  3. Projects/UOContent/Mobiles/Difficulty/DifficultyLoot.cs:29
  4. Projects/UOContent/Mobiles/Difficulty/DifficultyLoot.cs:37
  5. Projects/UOContent/Mobiles/Difficulty/DifficultyLoot.cs:314
  6. Projects/UOContent/Misc/MondainsLegacy.cs:9
  7. Projects/UOContent/Items/Weapons/SlayerGroup.cs:286
    Super slayer membership
  8. Projects/UOContent/Items/Weapons/SlayerGroup.cs:301
    Lesser slayer membership
  9. Projects/UOContent/Mobiles/Monsters/ML/Labyrinth/Miasma.cs:16
  10. Projects/UOContent/Mobiles/Monsters/ML/Labyrinth/Miasma.cs:17
  11. Projects/UOContent/Mobiles/Monsters/ML/Labyrinth/Miasma.cs:18
  12. Projects/UOContent/Mobiles/Monsters/ML/Labyrinth/Miasma.cs:20
  13. Projects/UOContent/Mobiles/Monsters/ML/Labyrinth/Miasma.cs:21
  14. Projects/UOContent/Mobiles/Monsters/ML/Labyrinth/Miasma.cs:23
  15. Projects/UOContent/Mobiles/Monsters/ML/Labyrinth/Miasma.cs:25
  16. Projects/UOContent/Mobiles/Monsters/ML/Labyrinth/Miasma.cs:26
  17. Projects/UOContent/Mobiles/Monsters/ML/Labyrinth/Miasma.cs:28
  18. Projects/UOContent/Mobiles/Monsters/ML/Labyrinth/Miasma.cs:29
  19. Projects/UOContent/Mobiles/Monsters/ML/Labyrinth/Miasma.cs:30
  20. Projects/UOContent/Mobiles/Monsters/ML/Labyrinth/Miasma.cs:31
  21. Projects/UOContent/Mobiles/Monsters/ML/Labyrinth/Miasma.cs:32
  22. Projects/UOContent/Mobiles/Monsters/ML/Labyrinth/Miasma.cs:34
  23. Projects/UOContent/Mobiles/Monsters/ML/Labyrinth/Miasma.cs:35
  24. Projects/UOContent/Mobiles/Monsters/ML/Labyrinth/Miasma.cs:36
  25. Projects/UOContent/Mobiles/Monsters/ML/Labyrinth/Miasma.cs:37
  26. Projects/UOContent/Mobiles/Monsters/ML/Labyrinth/Miasma.cs:38
  27. Projects/UOContent/Mobiles/Monsters/ML/Labyrinth/Miasma.cs:88
  28. Projects/UOContent/Mobiles/Monsters/Reptile/Melee/Scorpion.cs:47
  29. Projects/UOContent/Mobiles/Monsters/ML/Labyrinth/Miasma.cs:91
  30. Projects/UOContent/Mobiles/Monsters/Reptile/Melee/Scorpion.cs:43
  31. Projects/UOContent/Mobiles/Monsters/Reptile/Melee/Scorpion.cs:45
  32. Projects/UOContent/Mobiles/Monsters/Reptile/Melee/Scorpion.cs:44
  33. Projects/UOContent/Mobiles/Monsters/ML/Labyrinth/Miasma.cs:81
  34. Projects/UOContent/Mobiles/Monsters/Reptile/Melee/Scorpion.cs:56
  35. Projects/UOContent/Mobiles/Monsters/ML/Labyrinth/Miasma.cs:84
  36. Projects/UOContent/Mobiles/Monsters/Reptile/Melee/Scorpion.cs:53
  37. Projects/UOContent/Mobiles/Monsters/Reptile/Melee/Scorpion.cs:54
  38. Projects/UOContent/Mobiles/Monsters/ML/Labyrinth/Miasma.cs:40
  39. Projects/UOContent/Mobiles/Monsters/ML/Labyrinth/Miasma.cs:41
  40. Projects/UOContent/Mobiles/Monsters/Reptile/Melee/Scorpion.cs:41
  41. Projects/UOContent/Mobiles/Monsters/ML/Labyrinth/Miasma.cs:12
  42. Projects/UOContent/Mobiles/Monsters/Reptile/Melee/Scorpion.cs:12
  43. Projects/UOContent/Mobiles/Monsters/Reptile/Melee/Scorpion.cs:13
  44. Projects/UOContent/Mobiles/Monsters/ML/Labyrinth/Miasma.cs:83
  45. Projects/UOContent/Mobiles/Monsters/ML/Labyrinth/Miasma.cs:80

Category: Monsters and NPCs