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17 May 2024: Card library updated.

Bolas's Citadel

3BBB · Legendary Artifact

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.

Similar cards

Color identity:
NameManaTypeText
Power Sink XUInstant Counter target spell unless its controller pays {X}. If that player doesn't, they tap all lands with mana abilities they control and lose all unspent mana.
Elder Deep-Fiend 8Creature — Eldrazi Octopus Flash Emerge {5}{U}{U} (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value.) When you cast this spell, tap up to four target permanents. 5/6
Forbidden Alchemy 2UInstant Look at the top four cards of your library. Put one of them into your hand and the rest into your graveyard. Flashback {6}{B} (You may cast this card from your graveyard for its flashback cost. Then exile it.)
Sanity Grinding UUUSorcery Chroma — Reveal the top ten cards of your library. For each blue mana symbol in the mana costs of the revealed cards, target opponent mills a card. Then put the cards you revealed this way on the bottom of your library in any order.
Soul Reap 1BSorcery Destroy target nongreen creature. Its controller loses 3 life if you've cast another black spell this turn.
Opening Ceremony 4RRSorcery Add {W}{U}{B}{R}{G}{C}. You may open a sealed Magic booster pack. Until end of turn, you may cast spells from among the cards in that booster pack.
Game of Chaos RRRSorcery Flip a coin. If you win the flip, you gain 1 life and target opponent loses 1 life, and you decide whether to flip again. If you lose the flip, you lose 1 life and that opponent gains 1 life, and that player decides whether to flip again. Double the life stakes with each flip.
Debt to the Deathless XWWBBSorcery Each opponent loses two times X life. You gain life equal to the life lost this way.
Bounteous Kirin 5GGLegendary Creature — Kirin Spirit Flying Whenever you cast a Spirit or Arcane spell, you may gain life equal to that spell's mana value. 4/4
Mosswort Bridge Land Hideaway 4 (When this land enters the battlefield, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.) Mosswort Bridge enters the battlefield tapped. {T}: Add {G}. {G}, {T}: You may play the exiled card without paying its mana cost if creatures you control have total power 10 or greater.
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