Nope, you didnt swap with vanish as you needed ramp up time with poisons or envenom didnt do damage (and you didnt have step so you had to waddle all the way and it was super predictable), and yes you could peel with vanish but that was basicely once every 2 minutes. It was extremely braindead. And no you didnt use shiv or dismantle on far away targets, simply because you had no step (so also no step kick etc). Sure you used dismantle and blind and you shived your main target (or a close by offtarget) and gouge and so on - but that really wasnt all that skillfull. 99% of the game you pressed mut-envenom-mut-envenom-mut-envenom over and over again till something died.