Ioun, the Knowing Mistress is the goddess of knowledge, prophecy, and skill. She opposes Vecna, who deals in dark secrets and hidden knowledge. As an NPC, Ioun is played by Matthew Mercer.

Description Edit

Symbols and Appearance Edit

Ioun appears as an older woman of long, wavy silver hair. Her skin is weathered and wrinkled around her almond shaped eyes with purple irises. She wears blue and white robes that tumble out from her form in tendrils of parchment.[3]

Ioun has a large, darkened gash of black, curling void in her stomach.[4]

Personality Edit

Places of Worship Edit

Tal'Dorei Edit


Fan art of the ziggurat beneath Whitestone, by Son of Joxer.[art 1]

Beneath the castle of Whitestone lies an ancient underground ziggurat, which was a temple to Ioun. Some 800 years ago,[5] the land around that ziggurat was the site of a divine battle, in which Ioun and the god Pelor sought to banish the Chained Oblivion. Ioun was badly wounded in that battle,[6] and Pelor blessed the land with his own Sun Tree to watch over and protect her hidden temple.[citation needed]

Wildemount Edit

The Knowing Mistress is one of the deities approved for worship within the Dwendalian Empire.[7]

Commandments of the Knowing Mistress Edit

Commandments of the Knowing Mistress

  • Unmask those who would destroy the Knowing Mistress. Learn their secrets and unveil them to the world.

  • Uphold and teach the importance of reason, perception, and truth in guiding one’s emotions and path.

  • Condemn those who lie, even among your allies, for evil folk gain power when their followers obscure the truth. Never stoop to the level of liars.

Known Worshipers Edit

History Edit

Background Edit

Ioun was one of the gods who fought against the Chained Oblivion during the Calamity, around 800 years ago. She was badly wounded by the traitor god in that battle and has been recovering, in hiding, ever since.[5][1]

200px-Ioun Symbol

Another Common Ioun Symbol

Campaign OneEdit

"The Fear of Isolation" (1x105) Edit

"The Endless Atheneeum" (1x106) Edit

Quotations Edit

Trivia Edit

References Edit

  1. 1.0 1.1 1.2 1.3 See Critical Role: Tal'Dorei Campaign Setting, p. 16.
  2. See "The Fear of Isolation" (1x105) at 1:25:10.
  3. See "The Fear of Isolation" (1x105) at 4:00:00.
  4. See "The Endless Atheneeum" (1x106) at 1:25:40.
  5. See "Elysium" (1x104) at 2:52:05.
  6. See "Elysium" (1x104) at 2:24:40.
  7. See "Steam and Conversation" (2x09) at 0:46:11.


  1. Fan art of the ziggurat beneath Whitestone, by Son of Joxer (source).  Used with permission.

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