Regarding Planar Sphere and Unseen Eye quests - I'm almost sure that they are not time sensitive. Not so sure about Cernd's child but it seems to be not time sensitive as well.
Eladamri, I think, your party is great if you have fun playing with it
The only question - how you as Avenger are planning to cooperate with Corgan?
Or you are going to be evil Avenger?
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Sincerely Yours,
Tanda