1123981:Aragorn used to keep a list of cards that had changed, but I always forget to save the link when I see it. The majority of them were simply clarifying erratas though. The only two I can remember that actually changed in function were Devilsaur Leggings(changed to have Leg(1) tag instead of Leggings(1) tag), and Brother Rhone(added "this turn" onto the end of his power).
Moorf keeps all the recent stuff listed in the first post though.
I think you mean Korthas Greybeard and not Brother Rhone.