name: Bolas's Citadel
originalText: You may look at the top card of your library any time.
  You may play lands and cast spells from the top of your library. If you cast a spell this way, pay life equal to its mana value rather than pay its mana cost.
  {T}, Sacrifice ten nonland permanents: Each opponent loses 10 life.
printings: FCA, MB2, PLG21, PRM, PWAR, SLD, WAR
text: You may look at the top card of your library any time.
  You may play lands and cast spells from the top of your library. If you cast a spell this way, pay life equal to its mana value rather than pay its mana cost.
  {T}, Sacrifice ten nonland permanents: Each opponent loses 10 life.
type: Legendary Artifact