The central premise of Baldur's Gate 3 is pretty straightforward: You have an illithid tadpole in your head and you want it out. But what if you decide that you don't actually want that at all—that what you really want is even more mind flayer madness? The Baldur's Gate 3 Steam page states plainly that players can "embrace corruption and become ultimate evil" if that's what they're into, and today Larian finally got around to explaining more about how that's going to work.
Illithid are powerful psionicists, and so the upside of having an illithid tadpole slowly gnawing its way through your brain is that you can end up with some pretty impressive abilities too. (The downside is ceremorphosis, the forced transformation of your body and mind into an illithid.) In Baldur's Gate 3, you'll actually be able to develop and expand upon those newfound abilities across a separate, hidden skill tree called Illithid Powers.
