Full-illithid

Full-illithid
Medium Aberration
Mind flayer
Stats
Armour Class	16
Weight	60 kg ( lb)
Initiative	+1
Ability scores
STR DEX CON INT WIS CHA 13 (+1) 12 (+1) 14 (+2) 20 (+5) 18 (+4) 18 (+4)
Proficiency bonus	+2
Saving throws	Str +1 Dex +1 Con +2 Int +5 Wis +4 Cha +4
Conditions
Mind Flayer Form	Entity has become a mind flayer.
Permanent Mind Sanctuary	Can use actions and bonus actions interchangeably.
Features
Ability Drain	Once per turn, reduce an attack target's relevant Ability score by 1.
Charm	Charm an enemy as a reaction.
Cull the Weak	If an enemy has fewer HP than you do illithid powers, it dies, damaging nearby creatures.
Favourable Beginnings	Add your Proficiency bonus to the first attack roll or ability check.
Luck of the Far Realms	Once per Long Rest, change a successful Attack Roll into a Critical Hit.
Permanent Mind Sanctuary	You can use actions and bonus actions interchangeably.
Psionic Backlash	React to a spell attack by dealing psychic damage for every level of that spell.
Psionic Dominance	React by nullifying a spell with a level lower or equal to your proficiency bonus.

A full-illithid is a character who has undergone complete ceremorphosis and become a mind flayer. This option will only become available after travelling to the Astral Plane during the quest Confront the Elder Brain.

In order to transform, the player must offer to do so while in dialogue with The Emperor or Orpheus once they have reached the Astral Plane after travelling to the Morphic Pool. If Karlach was brought along, she will also offer to transform. It is not necessary for the player character or Karlach to have accepted the Astral-Touched Tadpole and become a partial-illithid in order to become a full-illithid.

Only the player character, Orpheus or Karlach may undergo the full transformation^{[Needs Verification]}.

Changes

Player-characters and Karlach will still have access to their previous set of abilities and proficiencies. However, ability scores, race and type will change (see info box).

Orpheus will have slightly different stats, and only have access to his illithid powers.

Conditions

•  Mind Flayer Form
•  Permanent Mind Sanctuary

New abilities

After becoming a full-illthid, the illithid power tree will become locked, however most abilities, or upgraded versions of abilities, will be gained, as well as some new ones:

•  Levitate (Illithid Power)
•  Tentacle Whip
•  Extract Brain
•  Strengthened Force Tunnel
•  Fierce Perilous Stakes
•  Nebulous Black Hole
•  Synaptic Consumption
•  Augmented Shield of Thralls
•  Potent Concentrated Blast
• Fracture Psyche (Full-illithid)

And the full-illithid upgrade of Mind Sanctuary:

•  Permanent Mind Sanctuary

Old abilities

If the character did not already have the following powers, they will be unlocked:

•  Displacer Beast Shape
•  Stage Fright
•  Psionic Overload
•  Mind Blast
•  Mind Sanctuary
•  Transfuse Health

And the following passives, if they did not already have them:

•  Ability Drain
•  Charm
•  Cull the Weak
•  Favourable Beginnings
•  Luck of the Far Realms
•  Psionic Backlash
•  Psionic Dominance

See also

• Illithid powers
• Partial-illithid