"Dodoo," chimes the game, subtly announcing to the whole player base of World of Warcraft that I've turned on Perception (an ability to see stealth classes). Rogues scurry away into hiding, only to re-emerge 20 seconds later to Cheapshot or Ambush.

On the other side of the fence, Warlocks keel over and die as Undead players turn on Way of the Forsaken, making the race immune to the class's primary form of attack for the next 20 seconds (no sound effect telling the world, too). Teen libido magnet Succubus stands idly by as Rogues mash the squishy spellcasting class into oblivion.

Oh class balance oh class balance, wherefore art thou class balance?