On a side note, I enjoyed Joe Abercrombie's "The First Law" cycle. It subverts the "wise old man enlists young hero's services for a lofty endeavor" trope to great effect.
Spoilers
I guess the main wizard is to gandalf what homelander is to Superman? Like, what if he were more self-interested?
I also didn't like how they didn't resolve Logan's story. I guess I'm supposed to read another trilogy to figure it out.