Ioun Stone

Wondrous Item

Ioun Stone — fantasy item illustration. Ioun Stone is a magic item (wondrous item) of rare rarity.
Image: FTTHelper

Item Details

Type:
Wondrous Item
Rarity:
Rare
Attunement:
Required

Description

Some say these enchanted gems take their name from a deity of knowledge, others that they are named for the sound they make as they gently orbit their bearer’s head. Whatever the case, there are many types of ioun stones, each imbued with powerful beneficial magic.

The specifics of these stones vary but they all work in essentially the same way: once you have attuned to it you can use an action to set a stone in a gentle orbit around your head, 1d4 feet away from you. Another creature may use an action to try and take an orbiting stone, but must make a melee attack against AC 24 or make a DC 24 Dexterity (Acrobatics) check. An ioun stone’s AC is 24, it has 10 hit points, and resistance to all damage. While orbiting your head, it is considered a worn item. You can use an action to seize and stow the stone, returning it to an inert and inactive state.

Table: Ioun Stones

TypeRarityCostCrafting ComponentsProperty
AbsorptionVery rare10,000 gpRefined negative energyWhile this white marble sphere orbits your head, when a creature you can see casts a spell of 4th-level or lower targeting only you, you can use your reaction to have the stone harmlessly absorb the spell, suffering no damage or negative effects. The stone can absorb 20 spell levels. If a spell is higher level than the available spell levels left in the stone, the spell cannot be absorbed. After absorbing 20 spell levels the stone loses its magic and turns a faded gray.
AgilityVery rare15,000 gpA cat’s dream captured in the Astral PlaneWhile this ice-blue octahedron orbits your head your Dexterity score is increased by 2 (to a maximum of 20).
AwarenessRare600 gpPhase spider’s eyeWhile this bright red cylinder orbits your head, it chimes to keep you from being surprised .
FortitudeVery rare15,000 gpHoof or horn of a divine oxWhile this bright pink dodecahedron orbits your head your Constitution score is increased by 2 (to a maximum of 20).
Greater AbsorptionLegendary50,000 gpRefined negative energy, shards from a destroyed staff of powerThis gold and onyx ellipsoid draws powerful magic into it. While this gem orbits your head, it functions as an ioun stone of absorption, but can absorb spells of 8th-level or lower, up to a maximum of 50 total spell levels.
InsightVery rare15,000 gpTail feathers from an awakened owlWhile this clear octahedron orbits your head your Wisdom score is increased by 2 (to a maximum of 20).
IntellectVery rare15,000 gpCanine teeth from an awakened foxWhile this cobalt blue tetrahedron orbits your head your Intelligence score is increased by 2 (to a maximum of 20).
LeadershipVery rare15,000 gpCollar from a loyal dog that died of old ageWhile this brilliant yellow cube orbits your head your Charisma score is increased 2 (to a maximum of 20).
MasteryLegendary50,000 gpThe most treasured possession of a slain adventurer that redeemed themselves in deathWhile this jet icosahedron orbits your head, your proficiency bonus is increased by 1.
ProtectionRare1,000 gpBone plate from a stegosaurusWhile this dusty blue tetrahedron orbits your head, your AC is increased by +1.
RegenerationLegendary25,000 gpBasilisk's gizzardWhile this green and purple spindle orbits your head, you regain 15 hit points every hour, provided you have at least 1 hit point.
ReserveRare600 gpPearl of powerThis radiant indigo prism encases a pearl and can store spells for later use. The stone can hold up to 3 spell levels and is typically found with 1d4 – 1 levels of stored spells. To store a spell in the stone, a creature must cast a 1st-, 2nd-, or 3rd-level spell while holding it. The spell is drawn into the stone with no other effect. If there aren’t enough available levels to hold a spell, it cannot be stored. While the stone is orbiting you, you can cast any spell stored in it using the appropriate action. The spell uses the spell level, spell save DC, attack bonus, and spellcasting ability of the creature that stored the spell, but you are considered to be the caster. Once a spell is cast, it is no longer stored.
StrengthVery rare15,000 gpCanine teeth from an awakened bearWhile this bright pink pentagonal trapezohedron orbits your head your Strength score is increased by 2 (to a maximum of 20).
SustenanceRare525 gpHoneycomb from a giant bee beehiveWhile this delicate amber spindle orbits your head, when taking a long rest you can roll a d20\. On an 11 or higher, you do not require Supply during that long rest .