yeah i know he applies to the rule of 4 and he is called saruman for unique purposes but hes not "saruman" as in a minion. You cant play him out then always play cards that require saruman. Im sure ive read this somewhere, i wish i knew where it was....
Hate to say it, my friend, but I'm 99.9% sure Thran is correct. Cards that spot "Saruman" simply spot the card title...it doesn't care WHAT type of card that "Saruman" actually is, as long as it's simply "Saruman" and not something like "
Servants to Saruman". So a card spotting him can spot a minion, follower, or even conditions or artifacts or something if one existed with the title "Saruman".
Now only a card with vitality (AKA a character...specifically a minion, in this case) can be exerted, yes, so cards like
A Fell Voice On The Air can ONLY work with a minion Saruman, since it requires exerting. Cards like
Their Arrows Enrage, however, can work with minion Sarumans OR follower Sarumans OR any other card titled "Saruman" since it requires simply spotting.