Much of the early plot of Baldur's Gate 3 will see your character dealing with an uninvited guest (an interdimensional tadpole), which is slowly turning you, specifically, into one of those most fearsome of all classic Dungeons & Dragons enemies: The Ilithid, better known as a "mind flayer".
In its seemingly unceasing quest to outdo every other RPG ever made, Larian Studios poses an essential question: What if you like your new house guest, all the renovations they've made (on a molecular level) and the accompanying psionic powers that come standard? You're already starting to show some pretty homicidal tendencies; what's the worst that could happen?
What, indeed. A "hidden" (in that the way it's unlocked has changed over the course of Early Access in response to player feedback) skill tree comprised of 25 "mind-flayer-inspired" abilities, for starters. That's more abilities than some single-player RPGs have, total, and to be clear, the data suggest that few players ever actually have the gumption to get down with their bad selves, given the choice.
If you're still playing catchup, that's how much Larian is stunting with this beast, aiming to take a shot, perhaps, at the widely-recognised current king of the WRPG castle, The Witcher 3: Wild Hunt. BG3 is certainly strutting, but it is true that the once-in-a-lifetime RPG is making other developers nervous and has been thusly described: "It's Rockstar-level nonsense for scope". Quantity does not imply a lack of quality, and we'd gently remind those still fooling themselves into thinking otherwise that Larian's recent record speaks for itself.