I think he may or may not have been one shot on Mojachi[his wow character, he doesn't play anymore though. ppl bothered him too much in game "omg. ur the guy who made those wow videos/urealms! blah blah blah on and on and on for hours on end...].
Mojachi is a Gnome Mage. Rogues are the only class[obviously] in wow that can perform a "sneak attack" or Ambush. But I have never performed an ambush crit so high, it could take out a player or monster 10, 11 or 12 levels higher than me. They lowered the damage % of ambush, Rob. used to be 300%, now its 275%. and also, i barely ever win against ranged classes. hello? roots?