Your character and companions can gain abilities in Baldur's Gate 3. Some, like the Illithid Powers, emphasize the use of psychic force. Telepathy and telekinesis go hand in hand when you want to eliminate your foes. However, there are stronger variants that you can obtain. Our guide discusses how you can unlock more high-tier Illithid Powers in Baldur's Gate 3. Likewise, please be reminded that this guide contains spoilers.
How to Unlock More High-Tier Illithid Powers in Baldur's Gate 3
To unlock the Baldur's Gate 3 high-tier Illithid Powers, you need to rescue the Emperor Mind Flayer. Here's a quick summary of what this process entails:
In Act 3, your party will get ambushed in Wyrm's Crossing. You have to battle the Githyanki attackers, enter a portal to the Astral Plane, and help the Emperor. Attacking him will simply lead to a game over, as the Absolute ends up with full control over your "reborn" character.
After chatting with the Emperor, he offers a chance for you to "evolve." The decision is entirely up to you. If you agree, he'll provide an Astral-Touched Tadpole.
If you link your psyche to it, you'll turn into a Half-Illithid.