Saeviomagy
Adventurer
Patryn of Elvenshae said:Heck, you could make a Sense Motive check and know that "Billy Bob's been charmed or sumptin'" - I couldn't see ruling out a spellcraft check in the exact same circumstances.
The effects of the spell - confusion, in this case - is that "Billy Bob's actin' funny."
But billy bob could be acting funny because he's dominated. Or geased. Or insane.
I think if you don't know exactly what the spell is, then you've just got to hit the guy with a broad-band 'nuke everything' dispel until you get the one you want.