If it's a specific trigger I wish I could point to it, but I'm just not sure. I've played thousands of hours, and this is the first time I've ever had this particular dialogue tree. Nothing at all about showing me something magical.
It was surprising enough that I made a post here. Hoping someone might know if this is new or if there's a set of triggers I'm not aware of?
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Another dialogue tree I'd like to see changed is when Astarion talks about how he hasn't seen his face. I basically have the options to tell him to stop wasting my time or say he's not aging well or to stare deeply at him and "act as his mirror." Frankly, I don't want to act as a mirror to some dude and talk about his piercing eyes. Not sure what the writer was thinking there.
I'd rather have an option to just say, "That's tough, man. I'm sorry to hear that."