Monster Dossier

Ouroboros

Ouroboros is a fantasy monster entry from source B3.

Level 21

Traits

rarengargantuanastralbeast

Rules & statistics

Monster Profile

Perception

33

Senses

  • Name
    darkvision

Languages

Languages
  • aklo (can't speak any language)

Skills

Acrobatics
36
Athletics
41

Ability Mods

Str
10
Dex
5
Con
7
Int
-4
Wis
4
Cha
8

Defenses

Ac
45
Saving Throws
Fort
38
Ref
34
Will
33
Hp
  • Hp
    500
    Abilities
    • regeneration 50 (deactivated by
Immunities
  • acid
  • negative
  • poison
  • precision
  • death effects
  • disease
Weaknesses
  • Name
    piercing

Speed

Walk
100
Fly
100

Attacks

  • Range
    Melee
    Name
    maw
    Attack
    39
    Traits
    • magical
    • reach
    Effects
    • Improved
    Damage
    4d12+18 piercing plus Improved Grab
    Types
    • piercing
  • Range
    Melee
    Name
    body
    Attack
    39
    Traits
    • magical
    • reach
    Damage
    4d10+18 bludgeoning
    Types
    • bludgeoning
  • Range
    Melee
    Name
    incalculable fangs
    Attack
    37
    Traits
    • agile
    • magical
    • reach
    Damage
    3d6+16 piercing plus 2d8 poison
    Types
    • piercing
    • poison
  • Range
    Melee
    Name
    tail
    Attack
    39
    Traits
    • magical
    • reach
    Damage
    4d12+18 bludgeoning
    Types
    • bludgeoning

Abilities

Mid
  • Traits
    • aura
    • incapacitation
    • mental
    • visual
    Entries
    • 100 feet. The ouroboros is the embodiment of perfect of diamonds in a resurrect ritual infinity, and this concept pulls at the threads of mortal minds, desperately straining the limits of their comprehension. When a creature ends its turn in the aura, it must attempt a 41 Will save. The creature is then temporarily immune for 1 minute.
    • Type
      successDegree
      Entries
      Critical Success
      The creature is stupefied 1 for 1 round.
      Success
      The creature is stupefied 1 for 1 minute.
      Failure
      The creature is stupefied 1 for 1 minute and stunned 3.
      Critical Failure
      The creature is stupefied 3 and stunned, both for 1 minute.
    Name
    Unfathomable Infinity
  • Activity
    Number
    1
    Unit
    free
    Entries
    • Incalculable fangs only. Because the ouroboros contains an infinite number of snakes that act independently, its Attack of Opportunity is a free action (though it can still use only one per trigger).
    Name
    Attack of Opportunity
  • Entries
    • When the ouroboros takes slashing or piercing damage, or when.
    Name
    Sanguine Spray
  • Entries
    • Tail ends, blood gushes from the wound in a 15-foot cone. Each creature in the area takes 5d6 acid damage (41 basic Reflex save). A creature that takes any damage is exposed to the ouroboros's regenerative blood (see below)
    • Where the blood falls upon ground, it coagulates into magical snakes that bite at anyone who passes. This is hazardous terrain deals 17 piercing damage and 5 poison damage to any non-ouroboros creature that moves through the square or ends its turn there. A creature that avoids all the piercing damage doesn't take the poison damage.
    • After 1 hour, a blood patch permanently becomes a living snake, typically an emperor cobra (Bestiary 2 245).
    Name
    Devour
Bot
  • Activity
    Number
    1
    Unit
    action
    Entries
    • An ouroboros spend most of its life eating its own tail, which perpetually regrows at the same rate it's consumed. The ouroboros places its maw around the end of its tail and begins devouring its own body.
    • While the ouroboros is consuming itself, its regeneration can't be suppressed, and it is immune to drained, enfeebled, fatigued, persistent damage, and sickened conditions. If any of these conditions is in effect when the ouroboros takes this action, the condition immediately ends. While eating its tail, the ouroboros can't make maw or tail strikes, and its Speeds are 50 feet. It continues devouring its tail even while dying, unconscious, stunned, or otherwise unable to act.
    • To end this effect, the ouroboros must first be immobilized, then a creature must successfully Grapple it, which tears the maw free in addition to its normal effects.
    • The ouroboros can also cease Devouring its Tail with a single action. Either of these tears the maw free of the tail, causing the stump to spill blood as described in sanguine spray.
    Name
    Devour Tail
  • Activity
    Number
    1
    Unit
    reaction
    Trigger
    The ouroboros Grabs a creature with their maw
    Entries
    • The ouroboros uses Swallow Whole.
    Name
    Fast Swallow
  • Activity
    Number
    2
    Unit
    action
    Requirements
    The ouroboros is eating its own tail (see Devour Tail)
    Entries
    • As Trample, except the ouroboros can Fly up to double its Speed instead of Stride||Striding. Huge or smaller, body, 45.
    Name
    Flying Wheel
  • Type
    affliction
    Name
    Regenerative Blood
    Traits
    • contact
    • curse
    • incapacitation
    • poison
    • polymorph
    • primal
    • transmutation
    Note
    The regenerative and transmutative properties of ouroboros blood regenerate and mutate a creature's body into ouroboros-like snakes. A creature already affected by regenerative blood is immune to additional exposure.
    DC
    42
    Saving Throw
    Fortitude
    Max Duration
    24 hours
    Stages
    • Stage
      1
      Entry
      regeneration 5 , slowed 1, and clumsy 2
      Duration
      deactivated by fire
    • Stage
      2
      Entry
      regeneration 5 , slowed 2 and clumsy 4
      Duration
      deactivated by fire
    • Stage
      3
      Entry
      The creature's body transmutes into a mass of writhing snakes, with the effects an 8th-level animal form spell but with an unlimited duration.
      Duration
      N/A
  • Activity
    Number
    1
    Unit
    action
    Traits
    • attack
    Entries
    • Huge, 4d10+9 acid, Rupture 50
    Name
    Swallow Whole

Background

Lore

No lore provided.