Card of the Week: Shifting Sight by Chuck Kallenbach This would be my choice for the card that drives "most observers insane," as the lore implies. The crazy picture of a Harbinger viewed through an arcane lens is one thing. A tactic that you can play on attack or defense, that exerts all your abilities... Why on Norrath would you want to do that? First of all, you might not be giving up a critical combat action to play this tactic. You could already be ahead in the combat and your opponent is out of cards, for example. So the 'opportunity cost' for playing Shifting Sight is situational.