for the orc war and Feliar dying, are you aware he could've been saved? and everything else, so like technically you might still be right if you choose to side with Mirage on the point on her teaching us stuff. Vicoria too since she can also be saved or if you side with the bad orcs maybe Vicoria/Feliar would teach us stuff at her mothers order if we asked? and also I was being vague but I also meant specifically info from spellbooks about the shapeshifters too lol. then with the Thorne, Seth and Lionel bit I never really thought about saving Lionel with the gem, but I don't think it can really do much, since it was the temple that protected the place from the nameless' direct influence not the gems. could be wrong though and maybe it could help Thorne maintain there memories if they ever got close to Lionel again?
also ikr?? he is like a living version of the apple from the tree of knowledge, on one hand you get knowledge and the other your banned from paradise, but in this case it's submitting to a hot guy but you risk literal lives lmao. and I would find a way to truly wipe all 500 pages of saves just to protect one of them XD