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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
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Mental Misstep U/PInstant ({U/P} can be paid with either {U} or 2 life.) Counter target spell with mana value 1.
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Sire of Stagnation 4UBCreature — Eldrazi Devoid (This card has no color.) Whenever a land enters the battlefield under an opponent's control, that player exiles the top two cards of their library and you draw two cards. 5/7
Caustic Hound 5BCreature — Phyrexian Dog When Caustic Hound dies, each player loses 4 life. 4/4
Rush of Knowledge 4USorcery Draw cards equal to the highest mana value among permanents you control.
Cradle of Vitality 3WEnchantment Whenever you gain life, you may pay {1}{W}. If you do, put a +1/+1 counter on target creature for each 1 life you gained.
Illusory Demon 1UBCreature — Demon Illusion Flying When you cast a spell, sacrifice Illusory Demon. 4/3
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