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In the Dungeons & Dragons fantasy role-playing game, the achaierai is a large birdlike outsider that comes from the plane of Acheron. It stands on four stiltlike legs with a round and plump body atop them. It is 15 feet tall overall.

An achaierai is always lawful evil and they hunt together in small flocks. They are evil, clever, and predatory, with a distinct taste for torture. It can release a choking, toxic black cloud that causes temporary insanity.


  • Williams, Skip, Jonathan Tweet, and Monte Cook. Monster Manual (Wizards of the Coast, 2000).
  • Turnbull, Don, ed. Fiend Folio (TSR, 1981).
  • Planes of Law boxed set
  • Williams, Skip, et al. Monstrous Compendium Fiend Folio Appendix (TSR, 1992).

External links

  • Achaierai – d20 System Reference Document entry