[derefr]

You'd think that if there was widespread agreement that a card was "too powerful", then it could just be decreed as banned in all formats. Or, to put it another way: why would players want to play a match in which a Lotus or Mox could be played against them, if they themselves might not have the opportunity to also have one? By analogy, who would play a fighting game where your opponent can select a highest-tier character but you're unable to?