Psi Crystal¶
Description and use¶
Campaign source: Icewind Dale - Rime of the Frostmaiden, original fifth-edition rules. Campaign-specific mechanics below are separate from the revised core wiki.
Wondrous item, uncommon (requires attunement by a creature with an Intelligence score of 3 or higher).
This crystal grants you telepathy for as long as you remain attuned to it. See the introduction of the Monster Manual for rules on how this telepathy works.
The crystal also glows with a purplish inner light while you are attuned to it.
The higher your intelligence, the greater the light’s intensity and the greater the range of the telepathy (see the Psi Crystal Properties table).
| Intelligence | Telepathy range | Light |
|---|---|---|
| 3–7 | 15 ft. | Dim 5 ft. |
| 8–11 | 30 ft. | Bright 5 ft.; dim another 5 ft. |
| 12–15 | 60 ft. | Bright 10 ft.; dim another 10 ft. |
| 16+ | 120 ft. | Bright 15 ft.; dim another 15 ft. |
Campaign context¶
Selected passages from the searchable transcription. The linked PDF controls if OCR punctuation differs.
A character who attunes to this psi crystal gains a form of indefinite madness (see the Indefinite Madness table in the Dungeon Master's Guide). Determine the result secretly, then convey this information only to the character's player. The madness does not end until the character is no longer attuned to the psi crystal. While the madness lasts, the character can hear a repeating telepathic distress signal put out by an illithid ship that crashed in the mountains and track the signal to its source (see "Id Ascendant," page 132). The only way to block the signal is by ending the character's attunement to the psi crystal.
PDF page 100 (printed 99) — source PDF is not included in this player reference.
Complicating matters is the damage done by the crash to the nautiloid's life support system, for once this sy tem shuts down, the illithids are at risk of freezing to death. If the shutdown occurs before they acquire a psi crystal, the gnome ceremorphs' back-up plan is to ac vate the nautiloid's self-destruct system (see area N7) before abandoning ship and making their way to Ten-Towns with the gnome squidlings in tow.
PDF page 133 (printed 132) — source PDF is not included in this player reference.
Source pages¶
PDF page 100 (printed 99) — source PDF is not included in this player reference. · PDF page 133 (printed 132) — source PDF is not included in this player reference. · PDF page 134 (printed 133) — source PDF is not included in this player reference. · PDF page 136 (printed 135) — source PDF is not included in this player reference. · PDF page 316 (printed 315) — source PDF is not included in this player reference.
Items index · By location · Treasure by location · Campaign overview
Referenced by campaign pages¶
Dredavex · Psi Crystal Detector · Treasure by Location
Import provenance¶
Source: Icewind Dale - Rime of the Frostmaiden (2020, supplied printing). Retained original campaign rules and page references. Imported from the campaign item record.