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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
Idol of Endurance 2WArtifact When Idol of Endurance enters the battlefield, exile all creature cards with mana value 3 or less from your graveyard until Idol of Endurance leaves the battlefield. {1}{W}, {T}: Until end of turn, you may cast a creature spell from among cards exiled with Idol of Endurance without paying its mana cost.
Orcish Librarian 1RCreature — Orc {R}, {T}: Look at the top eight cards of your library. Exile four of them at random, then put the rest on top of your library in any order. 1/1
Master of Predicaments 3UUCreature — Sphinx Flying Whenever Master of Predicaments deals combat damage to a player, choose a card in your hand. That player guesses whether the card's mana value is greater than 4. If the player guessed wrong, you may cast the card without paying its mana cost. 4/4
Merfolk Observer 1UCreature — Merfolk Rogue When Merfolk Observer enters the battlefield, look at the top card of target player's library. 2/1
Vedalken Orrery 4Artifact You may cast spells as though they had flash.
Unexplained Absence 3WInstant For each player, exile up to one target nonland permanent that player controls. For each permanent exiled this way, its controller cloaks the top card of their library. (To cloak a card, put it onto the battlefield face down as a 2/2 creature with ward {2}. Turn it face up any time for its mana cost if it's a creature card.)
Rootwater Mystic UCreature — Merfolk Wizard {1}{U}: Look at the top card of target player's library. 1/1
Thrull Parasite BCreature — Thrull Extort (Whenever you cast a spell, you may pay {W/B}. If you do, each opponent loses 1 life and you gain that much life.) {T}, Pay 2 life: Remove a counter from target nonland permanent. 1/1
Lavaball Trap 6RRInstant — Trap If an opponent had two or more lands enter the battlefield under their control this turn, you may pay {3}{R}{R} rather than pay this spell's mana cost. Destroy two target lands. Lavaball Trap deals 4 damage to each creature.
Scrib Nibblers 2BCreature — Rat {T}: Exile the top card of target player's library. If it's a land card, you gain 1 life. Landfall — Whenever a land enters the battlefield under your control, you may untap Scrib Nibblers. 1/1
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