It was kinda easy for me for some reason. Lets see... I had mostly theives, a white mage, and Ramza was a ninja. One of the theives had the Moderator thing on'em. I don't remember how exactly it happened, but I somehow I got the two assasins to stay away from the thieves and the Seph lookalike to stay still. I pretty much stole everything he had and used Ramza and the rest of the theives to beat him fairly quickly. And I got cool armor!