Ioun Stones

Ioun Stone Effect Absorption Absorbs up to 20 levels of spells targeted at you (level 4 or lower) — the stone stores the energy. Agility Increases Dexterity score by 2 (max 20). Awareness You can’t be surprised while the stone orbits you. Fortitude Increases Constitution score by 2 (max 20). Greater Absorption Absorbs up to 50 levels of spells (level 8 or lower). Insight Increases Wisdom score by 2 (max 20). Intellect Increases Intelligence score by 2 (max 20). Leadership Increases Charisma score by 2 (max 20). Mastery Increases proficiency bonus by +1. Protection Increases AC by +1 while it orbits you. Regeneration Regains 15 HP per hour if you have at least 1 HP left. Reserve Stores up to 3 spell levels. You or another creature can cast the stored spells. Strength Increases Strength score by 2 (max 20). Sustenance You don’t need to eat or drink. Mind Shielding: Makes your thoughts unreadable. Spell Turning: Reflects a percentage of spells back at the caster. Alertness: +1 to AC and saving throws. Sustaining: Removes the need for food, water, or air. Absorption (Lesser/Greater): Many versions with different limits. Vigor: Provides fast healing or regeneration.	ABILITY & SKILL STONES Mighty Strength: +4 Strength (max 24) Giant’s Endurance: +4 Constitution (max 24) Catlike Grace: +4 Dexterity (max 24) Sage’s Insight: +4 Intelligence (max 24) Oracle’s Vision: +4 Wisdom (max 24) Seraphic Charm: +4 Charisma (max 24) Swift Hands: Advantage on Sleight of Hand Nimble Feet: Advantage on Acrobatics Stonegrip: Advantage on Athletics Spider’s Balance: You can walk on walls/ceilings (Spider Climb) Enduring Mind: Advantage vs. psychic damage Iron Gut: Immunity to poison & disease Sure Aim: Advantage on ranged attacks Unerring Strike: Advantage on melee attacks Master Artisan: Expertise in one tool Perfect Recall: Perfect memory Silver Tongue: Auto-succeed on one Persuasion check per day Master Scout: Advantage on Stealth & Perception Arcane Aptitude: +2 spell attack bonus Ritual Mastery: Cast ritual spells in half time	DEFENSE STONES Minor Resistance: Resistance to one damage type (choose) Fireproof Skin: Immunity to fire damage Icebound Flesh: Immunity to cold damage Lightning Cage: Immunity to lightning damage Thunder Ward: Immunity to thunder damage Acid Veil: Immunity to acid damage Toxic Shell: Immunity to poison damage Psychic Fort: Immunity to psychic damage Force Field: Resistance to force damage Radiant Aegis: Resistance to radiant damage Necrotic Ward: Resistance to necrotic damage Stalwart Spirit: Advantage on saving throws vs. fear Iron Will: Advantage on saving throws vs. charm Reflex Shield: Advantage on Dex saves Life Ward: Once per day, avoid death (1 HP) True Resilience: Regenerate 5 HP/round Stoneskin: Permanent Stoneskin spell Spell Turning: Reflects first level 1–3 spell cast at you Spell Resistance: SR 12 + your level Magic Null: Create an antimagic aura (10 ft.) 1/day	SENSES STONES Darkvision: Darkvision 120 ft. True Sight: True Seeing out to 60 ft. Ethereal Sight: See into Ethereal Plane Detect Magic: Continuous Detect Magic Detect Thoughts: Read minds at will Clairvoyance: Use Clairvoyance spell 3/day Eyes of the Eagle: See up to 5 miles clearly Bat’s Ear: Hear whispers 500 ft. away Beast Tongue: Speak with Animals continuously Commune: Commune with your deity once per day
SPELL & POWER STONES Arcane Reserve: Store 5 spell levels Quickening: Quicken one spell per day Twin Cast: Twin one spell per day Metamagic Echo: Cast last spell again for free 1/day Focused Fire: Double spell range Spell Mastery: One extra known spell Spell Theft: Steal spell from enemy 1/day Spell Recovery: Regain 1 spell slot per long rest Scroll Reading: Use scrolls as if your class Wand Affinity: +2 charges to wands Infinite Cantrip: Empower one cantrip to double damage Sorcerous Blood: Gain 1 sorcery point per day Warlock Pact: Gain 1 extra invocation Druid’s Grove: Wild Shape lasts twice as long Cleric’s Ward: Turn Undead has double range Bard’s Verse: Inspiration dice are one size larger Monk’s Calm: 1 extra Ki point per day Fighter’s Precision: 1 extra Action Surge per day Rogue’s Escape: 1 extra Uncanny Dodge per day Paladin’s Oath: Aura of Protection +10 ft.	ELEMENTAL STONES Flame Strike: Fireball once per day Frost Nova: Cone of Cold once per day Stormcall: Call Lightning once per day Quake: Earthquake once per month Tidal Pull: Control Water once per day Gale: Gust of Wind at will Spark: Shocking Grasp at will Ember: Produce Flame at will Stoneform: Meld Into Stone 3/day Deep Earth: Passwall once per day	TRAVEL STONES Haste: Cast Haste once per day Flight: Fly speed equal to walking speed Mist: Misty Step 3/day Portal: Dimension Door once per day Return: Teleport to preset location once/week Safe Fall: Feather Fall continuous Phase: Blink spell 1/day Shadow Walk: Shadow Step once/day Etherealness: Enter Ethereal Plane once/week Teleport Circle: Create teleport circle once/month	COMMUNICATION STONES Message: Message cantrip at will Whisper: Sending spell 3/day Tongues: Tongues spell continuous Babel: Understand all languages Mindspeak: Telepathy 120 ft. Dreamwalk: Enter dreams 1/night Command: Dominate Person 1/day Pact: Mind link with familiar Beast Speak: Speak to all animals at once Seer’s Mirror: Scrying spell once/day	BODY & MIND STONES Immortality: Ageless body Revivify: Revivify once/month Soul Bond: Reincarnate if killed, once ever Twin Soul: Create a body double for 1 hour Memory Wipe: Modify Memory once/week Undeath: Become undead (Lich-lite) Fey Walk: Become invisible in dim light Foresight: Foresight spell once/week Echo Mind: Store thoughts/knowledge Dreamless Sleep: Sleep is perfectly restful in 1 hour	UTILITY & ODDITIES Light: Continuous Daylight Night: Create magical darkness Binding: Hold Person 1/day Silence: Silence spell 3/day Force Cage: Forcecage once/month Animate: Animate Objects once/day Servant: Unseen Servant continuous Guardian: Glyph of Warding once/day Lock: Arcane Lock 3/day Luck: +1 Luck bonus to all rolls
RARE & WEIRD STONES Polymorph: Polymorph 1/day Wild Magic: Wild Surge once/day Chaos: Random beneficial effect each dawn Law: Counteracts chaos effects Mirror Image: Mirror Image once/day Shadow Clone: Simulacrum once/month Time Stop: Time Stop once/month Chronomancy: Haste or Slow at will (choose one) Luck Thief: Steal luck from enemy (Curse) Famine: No need for food ever again Undetectable: Nondetection continuous Counterspell: Counterspell once/day Dispel: Dispel Magic once/day Cursebreak: Remove Curse once/week Doom: Bestows Bane on nearby enemies Plague: Creates a disease aura (dangerous!) Vampire’s Kiss: Regain HP from draining blood Fey Trick: Confuses enemy once/day Illusion: Major Image once/day Mirror Step: Swap places with ally 1/day Puppet Strings: Dominate Monster once/month Genesis: Create permanent demiplane once Sacrifice: Give HP to ally Binding Oath: Prevents user from lying Null Luck: Cancels all luck-based effects Shattered Fate: Shatters if user breaks oath Echo Voice: Speak all languages backwards True Chaos: Creates random spell effect on user daily Amber Memory: Store one complete life’s worth of memories Vancian Spark: Allows casting of a single spell from any class list, once/day