Bolas's Citadel

Type

Legendary Artifact

Mana Cost

{3}{B}{B}{B}

Oracle 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.

Rarity

rare