The illithid powers dont have specific hidden events but they definitely shape how your companions feel about you. Laezel gets pretty upset when you use them, while astarion and gale are actually quite interested in your abilities. When you first start experimenting with the powers, youll trigger an important dream with the guardian which sets up some big story moments later on.

Worth keeping in mind that using these abilities a lot can push you towards certain story paths, especially when it comes to the whole mind flayer transformation thing. Your companions will definitely have things to say about the changes they see in you, and those conversations feel pretty natural as part of the camps general atmosphere. Its actually kind of interesting how the approval shifts work their way into regular dialogues, especially when debating whether to embrace or resist the powers.

Tip if youre trying to keep everyone happy maybe balance out your power usage since different companions have such opposite views on it. The whole system focuses more on how your choices affect relationships rather than triggering specific scenes.