I'm not very good at editing and adding stuff, so I'll just make notes of what I know so far that can be added.

-First interaction is at Southern Dragon Mountains. If you lie or become aggressive at any point, Valeran will attack and you will die. Multiple personality checks can be done to improve your outcome at the end of the game, in the Ark of Lothasan. I'll try to clarify these.

-Before leaving, you can ask Valeran how to survive the Ashen Wastes or where to find Amarisa. He will tell you that you need to find something with the Anti-Rad property, or that Amarisa tried to sabotage the gate and is probably being kept in the Forsaken hideout.