Pathfinder Codex

Ydersius

The Headless King, Lord of Coiling Poison, Father of Serpents, The Primal Coil, The Sundered God, The Slumbering Speaker Below, The Severed God

PFS Legal

Pantheons

Other Deities, Scalefolk Deities

The ancient deity Ydersius (pronounced yeh-DER-see-us) is the patron of the serpentfolk, an ancestry of snake-like monstrous humanoids who battled humans of ancient Azlant during the Age of Legend. A deity of unquenched passion and anger, the generally more cerebral serpentfolk used him as an example of all that was potent and primal in their psyche.

Alignment
CE
Areas of Concern
Serpentfolk, immortality, poison
Favored Weapon
Dagger
Symbol
Snake skull and ouroboros
Sacred Animals
Snake
Sacred Colors
Green, red
Worshipers
Serpentfolk, lizardfolk, xulgaths, boggards, nagas, sorcerers with the serpentine bloodline, human snake cults, assassins
Worshipper Alignments
CN , NE , CE
Realms
Darklands (formerly Sydrixus, Maelstrom)

Edicts

Seek to return Ydersius to life, fulfill your passions, conquer your foes with no mercy, achieve glory for serpentkind

Anathema

Put the needs of others above those of serpentfolk, aid the spawn of Azlant

Domains

Chaos, Evil, Nobility, Scalykind, War

Subdomains

Demon, Hubris, Leadership, Martyr, Saurian, Tactics

Spells Requiring Worship

Constricting Coils

Unique Summon Rules

Source: Pathfinder #42: Sanctum of the Serpent God

  • Summon Monster 2 : Venomous Snake [this creature is summoned with the celestial template if you are good, or with the fiendish template if you are evil; you may choose either if you are neutral]
  • Summon Monster 4 : Amphisbaena
  • Summon Monster 5 : Emperor Cobra [this creature is summoned with the celestial template if you are good, or with the fiendish template if you are evil; you may choose either if you are neutral]
  • Summon Monster 7 : Giant Anaconda [this creature is summoned with the celestial template if you are good, or with the fiendish template if you are evil; you may choose either if you are neutral]

Unique Spell Rules

Source: Pathfinder #42: Sanctum of the Serpent God

Cleric, Warpriest

  • Accelerate Poison : can be prepared as a 2nd-level spell
  • Beast Shape I : can be prepared as a 3rd-level spell [only to take the form of a snake or serpent]
  • Beast Shape II : can be prepared as a 4th-level spell [only to take the form of a snake or serpent]
  • Beast Shape III : can be prepared as a 5th-level spell [only to take the form of a snake or serpent]

Cleric, Druid, Warpriest — Venomous Bolt : can be prepared as a 4th-level spell [arrow or bolt appears to be a rigid viper that bites its target with poisoned fangs]