In the original edition of D&D (white box plus supplements version), Outsiders (meaning those who are not from the Prime Material plane, and more specifically Powers; I'm aware that this is terminology is not used within said edition) had psionics (again, I'm aware that some of the spells were given names taken from psychic phenomena and that psionics as separate from magic did not show up until a later supplement to the white box edition). As editions changed, sometimes outsiders did have psionics and sometimes they didn't.

There is an in-game explanation for why the nature of character classes changed from one edition to the next (Fate of Istus) given for the world of Greyhawk.

By D&D 3.5, I believe only 3 Greyhawk Outsiders / Powers still possessed canonical psionics: Xan-Ye, Zuoken, and Sardior.

Is there any in-game reference given for Greyhawk (any edition) for why they experienced the loss of psionics?


1 Answer 1


No, there is not

It is always hard to prove a negative, but I am fairly confident that no such explanations exist. There are some in-world modules to justify changes associated with edition transitions in general (Fate of Istus and Die, Vecna, Die!), but neither of them does address psionics, or even more specifically, monster psionics, explicitly.

White Box to 1e transition. In the white box edition of D&D "outsiders had psionics" only when using supplements. The entire text of the white box does not contain either of the terms "outsider" or "psionics" a single time. Psionics were originally introduced in the Eldritch Wizardry supplement to the white box, and then added in slightly altered form to the 1st Edition of AD&D, which was mostly a gathering up of the original white box and supplemental material since its publication, and a few added rules either from Gary's home campaign or lobbied for by others, with no major changes. Because of this continuity, there was no need to explain any changes.

Greyhawk was not the "default" setting during the White Box/1e/2e era, there were multiple settings all used in parallel, and the rules were meant to be generic, even if they included spells named after personalities from Gary Gygax' home Greyhawk campaign, like Tenser, Mordenkainen and Otto.

During the 1e/2e transition, for Greyhawk, Fate of Istus was published to justify the changes in game mechanics for the various classes. The book consists largely of the description of 10 cities with associated adventures that test the various 1e classes, and is not really talking in detail about any mechanics changes, other than mentioning the abilities of various classes change, and that some classes, for example Monks (which were not a core class in 2nd edition) are not available any more:

Those who remain in the Flaeness will find their skills fading: they may become either fighters or thieves with the same number of hit points.

So the entire module was only concerned about how to narratively explain the changes to exisiting PCs and their classes, not about explaining changes to monster abilities.

During the 2e/3rd Edition, Greyhawk was made the default setting, and there was the Die, Vecna, Die! high level adventure to explain the changes in cosmology between 2e and 3e, like the vanishing of the Demiplane of Ravenloft or Spelljammer from the officially supported material, the changes summarized as follows (p. 151)

Some Outer Planes drift off and are forever lost, others collide and merge, while at least one Inner Plane runs ”aground” on a distant world of the Prime. Moreover, the very nature of the Prime Material Plane itself is altered. Half-worlds [...] multiply a millionfold, taking on parallel realism in what was before a unified Prime Material Plane. The concept of alternate dimensions rears its metaphorical head, but doesn’t yet solidify, and perhaps it never will. New realms, both near and far, are revealed, and realms never previously imagined make themselves known. Entities long thought lost emerge once more, while other creatures, both great and small, are inexplicably eradicated. Some common spells begin to work differently

There is nothing specifically on psionics. For 3e, there was (to my knowledge) no introductory kick-off adventure to transition existing characters into it, or no other in game explanation for the change. The Sunless Citadel was the intro adventure, but it served to intoduce new characters at level one to the game, not to transition old hands with high level characters over. For that, WotC published a Conversion Manual. The conversion manual however was focused entirely on how to convert/translate characters statistics, and was not an in-world explanation.

4th Edition did use the "points of light" default campaign style and setting, so again, no in-game explanation for Greyhawk.

5th Edition finally adopted the Forgotten Realms as the default setting, so no in-game transition explanation for Greyhawk either (which was relegated mostly to a list of deities at the back of the PHB, and has no dedicated published adventures). In fact, several originally Greyhawk characters and adventures have been retconned or made generic, for example, Iggwylf, originally an evil archmage in Greyhawk, or in Tales from the Yawning Portal the above-mentioned Sunless Citadel, Against the Giants, and Tomb of Horrors all are given instructions of how they can be placed in several settings: Dragonlance, Eberron, the Forgotten Realms or Greyhawk.

Add to that that the psionic rules were always a bit of an ill-fitting stepchild (Gygax regretted ever including them in the 1e rules), and they were not even part of the core rules after 1st edition, and it seems pretty likely that no such official material exists.

P.S. The term Outsiders in 3.5e normally refers to any kind of creature not native to the prime material plane, in particular, genies demons, devils, and celestials; while you seem to refer to lesser deities or demigods when using the term. At least within 3.5e context, that is not the common use of the term.

  • \$\begingroup\$ Re: "The entire text of the white box does not contain either of the terms "outsider" or "psionics" a single time." Not surprising for the former. 'Outsider' became used around the time of 2e and likely dates to the Planescape setting release. Before that the 1e term would have been something like 'denizen of the Outer Planes', while I'm not sure OD&D even had that defined a cosmology. \$\endgroup\$
    – Kirt
    Commented Dec 25, 2022 at 20:04
  • \$\begingroup\$ You're mistaken alleging D&D 4e didn't have a setting: “points of light” was that setting. It's also called the Nentir Vale, being the central geographic region 4e focuses on. Points of Light is a term for the situation the world finds itself in during the era the game takes place. The setting is consciously set up to be an anti-canon setting, but it is a setting. \$\endgroup\$ Commented Dec 29, 2022 at 1:04
  • \$\begingroup\$ @doppelgreener Thank you, fixed. My 4e lore is patchy as I was playing Pathfinder at the time. \$\endgroup\$ Commented Dec 29, 2022 at 6:23

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