Illithid powers are special abilities tied to the Mind Flayer tadpole that the player character and Origin Companions are infected with. After using illithid powers for the first time in dialogue and then when taking a Long Rest, the Dream Visitor will tell you how to unlock this skill tree.
After this event, finding and consuming Mind Flayer Parasite Specimens, such as from the corpses of other infected, will allow you to unlock a new power. Karlach, Wyll, Lae'zel, and Shadowheart will initially refuse to use illithid powers, but can be convinced to use them through Persuasion Checks.
List of illithid powers[edit | edit source]
|Illithid Persuasion||Passive Feature||You can use your connection to the parasite in your brain to force cultists of the Absolute to obey you.||Unlocked automatically|
|Psionic Overload||Class Action||Your attacks deal an additional 1d4Psychic damage, but you take 1d4Psychic damage every turn.||None|
|Favourable Beginnings||Passive Feature||The first Attack Roll or Ability Check you make against any target gains a bonus equal to your Proficiency Bonus.||None|
|Force Tunnel||Class Action||Charge forward, pushing all objects and creatures in your path 4m away from you.||None|
|Concentrated Blast||Class Action||Deal 3d6Psychic damage. You must be concentrating on another spell to cast this. If the target was concentrating, you heal as much as the damage that was dealt to it. The spell you were concentrating on will end.||None|
|Transfuse Health||Class Action||Sacrifice half your remaining hit points to heal a target for the same amount.||None|
|Stage Fright||Class Action||Your targets have Disadvantage on Attack Rolls and take 2d6Psychic damage each time they miss. Targets overcome their Stage Fright early when they succeeed on an Attack Roll.||Psionic Overload|
|Ability Drain||Passive Feature||Once per turn, when you make an Attack Roll, the attack reduces that target's corresponding Ability by 1. The Ability that is reduced is the same as the one used to make the Attack Roll.||Psionic Overload|
|Luck of the Far Realms||Passive Feature||When you make a successful Attack Roll against a foe, you can change that attack into a Critical Hit. Once per Long Rest.||Favourable Beginnings|
|Charm||Reaction||Channel the dark allure of the tadpole to Charm an enemy that attacks you, preventing them from attacking you until their next turn.
Note: Enemies has advantage on saving throws against being charmed.
|Displace||Passive Feature||Creatures suffering Falling damage because of your actions take an additional 1d8Psychic damage.||Force Tunnel|
|Repulsor||Class Action||Push anything and anyone back 6m. Deals 2d6Force damage, targets take half-damage if successful on save.||Force Tunnel|
|Psionic Backlash||Reaction||When an enemy Within 9m casts a spell, you can use your reaction to inflict 1d4Psychic damage to the caster per the spell‘s level.||Concentrated Blast|
|Cull the Weak||Toggleable Passive Feature||When you bring a creature down to fewer hit points than your number of evolved illithid powers, it dies and all nearby creatures take 1~4Psychic damage.||Concentrated Blast|
|Shield of Thralls||Class Action||Conjure a volatile shield around yourself or an ally, granting the target 10 temporary hit points.||Transfuse Health|
|Perilous Stakes||Class Action||Invest a creature with power that heals it when it attacks, but also makes it Vulnerable to all damage.||Transfuse Health|
Elite powers[edit | edit source]
When you first gain access to Illithid Powers, the outer ring will be locked. At the very end of Chapter Two, on the road to Baldur's Gate, you will be given the opportunity to unlock these powers by agreeing to absorb the Astral-Touched Tadpole and become a Partial-Illithid. Doing this will automatically unlock Fly (Illithid Power) and the 5 powers of the innermost ring, i.e. Concentrated Blast, Favourable Beginnings, Force Tunnel, Psionic Overload, and Transfuse Health. Any regular tadpoles the character might have already spent to unlock these abilities will be refunded. Absorbing the Astral-Touched Tadpole will also permanently mark your character's face with veins.
|Fracture Psyche||Class Action||Invade a target's mind and disrupt its defences. The target's Armour Class is reduced by 1. If the target dies while its psyche is fractured, you can cast Shatter Psyche on another target.||Unlock one of:|
|Illithid Expertise||Passive Feature||You have deepened your sense of self, gaining Expertise in Persuasion, Deception, and Intimidation Checks.
Also grants Proficiency in those skills if not already possessed.
|Unlock one of:|
|Psionic Dominance||Reaction||Use your reaction to cancel a spell targeted at you if its spell level is less than or equal to your proficiency bonus.||Unlock one of:|
|Black Hole||Class Action||Summon a black hole that pulls in nearby enemies and potentially Slows them. Up to five more black holes can be summoned after first casting. Refreshes after Short Rest.||Unlock one of:|
|Fly||Class Action||Fly to a target position. Uses movement speed and doesn't take an Action.||Unlocked automatically|
|Mind Blast||Class Action||Spew forth a conical wave of psychic energy and possibly Stun targets within. Deals 4d8+Spellcasting Ability ModifierPsychic damage.||None|
|Mind Sanctuary||Class Action||Sculpt a magical nexus that allows those within to take actions and bonus actions interchangeably. Refreshes after Long Rest.||Unlock one of:|
|Freecast||Toggleable Passive Feature||You have discovered a marvellous adaptability within yourself. Spell slots, charges, and similar resource costs for your next action or spell are removed. Refreshes after Long Rest.||Unlock one of:|
|Absorb Intellect||Class Action||Gobble up a foe's intellect, lowering their Intelligence by 1 per turn and healing your wounds for 5 turns (1d8hit points each turn).||Unlock one of:|
|Displacer Beast Shape||Class Action||Transform into a displacer beast that can Displace itself and enemies, and has 85 hit points. You take on the attributes of a displacer beast, but maintain your Intelligence, Wisdom, and Charisma scores. When your displacer beast form drops to 0 hit points, you revert to your original form.||Unlock one of:|
Full ceremorphosis[edit | edit source]
During the final quest Confront the Elder Brain, a character will have the option to undergo full ceremorphosis and become a Full-Illithid. At this point they will gain access to some more powerful versions of regular illithid powers. As well, player-characters can now unlock all illithid powers even if they had not undergone partial-ceremorphosis.
These abilities are not available through the "Illithid Power" screen, but are instead granted automatically after transformation.
|Strengthened Force Tunnel||Class Action||Charge forward, pushing all objects and creatures in your path 12 m / ft away from you. Deals 3d10+4Force and may cause Prone|
|Fierce Perilous Stakes||Class Action||Grant an ally an additional 15 Psychic damage, automatic Critical Hit when they roll a 15 or higher, and healing on hit. However, they will also be vulnerable to all damage.|
|Nebulous Black Hole||Class Action||Create a point of intense gravity dealing 3d10+4Force damage and possibly slowing enemies.|
|Synaptic Consumption||Class Action||Lower all of an enemies ability scores by 5, then 1 per turn, and regain 2~20hit points per turn for five turns. The foe is left Prone.|
|Augmented Shield of Thralls||Class Action||Target two creatures, granting 25 temporary hit points. Once these hit points are diminished, the shield bursts and leaves nearby enemies Stunned.|
|Potent Concentrated Blast||Class Action||Deals 9d6Psychic damage to an enemy. If they were concentrating on a spell, heal an equal amount of hit points.|
|Extract Brain||Class Action||Lobotomize a nearby creatures that is Stunned, Prone, Sleeping or Unconscious, dealing 5d10+50Piercing damage and regaining 6d6hit points.|
|Tentacle Whip||Class Action||Deal 3d10+5Psychic melee damage, and possibly Stun the target.|
|Levitate||Class Action||Float to a destination using movement speed.|
Other powers[edit | edit source]
|Survival Instinct||Class Action||If the character reaches 0 Hit Points, it regains 3d4hit points instead of falling Unconscious.||Reward from: Help Omeluum Investigate the Parasite|
|Awakened||Passive feature||You can use all of your Illithid Powers as a Bonus Action. Your resistance to the zaith'isk in the githyanki infirmary awakened this power.||Succeed on all three saving throws when interacting with the Zaith'isk in Crèche Y'llek.|
Mind flayer parasite locations[edit | edit source]
Act One[edit | edit source]
Act Two[edit | edit source]
Act Three[edit | edit source]
Spellcasting ability modifier[edit | edit source]
Illithid powers follow the same rule as scrolls when it comes to which ability is used for the saving throws of spells that requests one (e.g. Stage Fright).
If the player has invested their levels in one class only, their spellcasting ability modifier will be the one from that class. Classes abilities are listed in the spells page.
It gets more complicated in the case of Multiclassing, as the spellcasting ability modifier will be the one from the last class that has been added to the character, with a quirk: fighters and rogues will provide their ability modifier only if they are level 3 and in their spell subclass (Eldritch Knight and Arcane Trickster).
Example: Wizard 5, Monk 1, Rogue 2 will use the Wisdom stat for the saving throw difficulty of their illithid powers, as Rogue is not taken into account here, and Monk is the last class added before Rogue.
Achievements[edit | edit source]
|Expand Your Mind|
Consume a parasite and unlock a new power - is it meant to wriggle the whole way down?
Gallery[edit | edit source]
Notes[edit | edit source]
Pre-release[edit | edit source]
In Early Access, illithid powers were much more simple. Instead of consuming other tadpoles to gain points to spend on powers, your tadpole grew more powerful as you used Illithid Persuasion options in dialogue. Once you'd used Illithid Persuasion three times, a special cutscene was triggered during your next long rest and each character gained a single illithid power unique to their class. Some of these abilities were reworked into the current illithid powers. A full list of Early Access powers can be seen below:
|Early Access Illithid Powers|
|Power||Class||Description||How to Obtain|
|Endless Rage||Barbarian||While Raging, deal an additional 1d4 damage with weapon attacks, but receive 1d4Psychic damage each turn. Prevents Rage from ending early.||Succeed on 3 Illithid Wisdom Skill Checks, then rest until you receive a dream cutscene.|
|Stage Fright||Bard||Drown your enemies in an overwhelming fear of failure. They receive Disadvantage on Attack Rolls and take 2d6Psychic damage each time they miss an Attack Roll. Ends when they hit with an Attack Roll.||Succeed on 3 Illithid Wisdom Skill Checks, then rest until you receive a dream cutscene.|
|Survival Instinct||Cleric||Infuse a creature with psionic force. If it reaches 0 HP, it regains 3d4 HP instead of falling Unconscious.||Succeed on 3 Illithid Wisdom Skill Checks, then rest until you receive a dream cutscene.|
|Aberrant Shape||Druid||Magically assume the shape of an Intellect Devourer that can deal Psychic damage.||Succeed on 3 Illithid Wisdom Skill Checks, then rest until you receive a dream cutscene.|
|Psionic Pull||Fighter||Pull a creature or object toward you.||Succeed on 3 Illithid Wisdom Skill Checks, then rest until you receive a dream cutscene.|
|Fracture Psyche||Paladin||Invade a target's mind and disrupt its defenses (Reduces target's Armour Class by 1).||Succeed on 3 Illithid Wisdom Skill Checks, then rest until you receive a dream cutscene.|
|Force Tunnel||Ranger||Charge forward and push all objects and creatures in your path away from you.||Succeed on 3 Illithid Wisdom Skill Checks, then rest until you receive a dream cutscene.|
|Inkblot||Rogue||Create a cloud of magical darkness and immediately attempt to hide. Creatures within the cloud are Heavily Obscured and Blinded. Creatures cannot make ranged attacks into or out of the darkness.||Succeed on 3 Illithid Wisdom Skill Checks, then rest until you receive a dream cutscene.|
|Horrific Visage||Sorcerer||Release the eldritch magic within you and terrify a creature with your twisted powers. Regain 2 Sorcery Points and potentially deal 1d4Psychic damage per turn for 3 turns.||Succeed on 3 Illithid Wisdom Skill Checks, then rest until you receive a dream cutscene.|
|Supernatural Attraction||Warlock||You are part of a greater whole. Concentrate on your connection to teleport to another tadpole-infected creature.||Succeed on 3 Illithid Wisdom Skill Checks, then rest until you receive a dream cutscene.|
|Reflective Shell||Wizard||A protective shell envelops you. It reflects any projectiles targeted at you to their point of origin. Does not affect creatures that don't rely on sight or that can see through illusions.||Succeed on 3 Illithid Wisdom Skill Checks, then rest until you receive a dream cutscene.|
|Repulsor||All Classes||Channel the power of the Absolute, knocking back all creatures and objects and dealing 2d6Force damage.||Help Omeluum investigate the parasite|
|Resources||Action • Bonus action • Reaction • Movement speed • Concentration|
|Dice rolls||Ability check • Ability score modifier • Advantage • Attack roll • Damage roll (Mechanics) • Initiative • Inspiration • Proficiency (Bonus) • Saving throw|
|Other mechanics||Alchemy • Approval • Damage types • Difficult Terrain • Enchantment • Reactions • Resting • Stealth • Barter ( Attitude • Traders • Trading and item pricing)|
|Items|| Equipment (Weapons • Clothing • Armour • Shields • Headwear • Handwear • Footwear • Amulets • Rings • Cloaks)
Consumables (Arrows • Coatings • Dyes • Elixirs • Grenades • Potions • Scrolls) • Miscellaneous
|Ability scores||Strength • Dexterity • Constitution • Intelligence • Wisdom • Charisma|
|Races||Dragonborn • Drow • Dwarf • Elf • Githyanki • Gnome • Half-Elf • Half-Orc • Halfling • Human • Tiefling|
|Classes||Barbarian • Bard • Cleric • Druid • Fighter • Monk • Paladin • Ranger • Rogue • Sorcerer • Warlock • Wizard|
|Character features||Armour Class • Backgrounds • Creature size • Feats • Hit points • Illithid powers • Point Buy • Skills • Spells (List • Mechanics)|