I fight the same against all classes, which I guess is a problem, but eh. First, lead off by using kick, silencing them for usually about 1/3 - 1/4 of the fight. Then blackjack and envenom, hope for the stun. In any class, Ill use eviscerate as soon as I can after kick, and then, if the CD has expired, later in the fight also. In between, mashing your sword, running in circles, and if it benefits, an occasional confuse usually does the trick. Just a little combat trick that I must add to all thieves reading this. In a situation in which your facing a 3v2, use confuse on one, making the battle a 2v2. Confuse has a good 7 second effect time, and the CD is just about that also, so if needed you can use it two times on the same person to keep them out of the fight. This enables you to fight a fairer, easier to win 2v2 fight, before either gaining health, or 2v1'ing the remaining member. Random tip, but eh, had to put it somewhere, why not here