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17 May 2024: Card library updated.

Xanathar, Guild Kingpin

4UB · Legendary Creature — Beholder

At the beginning of your upkeep, choose target opponent. Until end of turn, that player can't cast spells, you may look at the top card of their library any time, you may play the top card of their library, and you may spend mana as though it were mana of any color to cast spells this way. 5/6

Similar cards

Color identity:
NameManaTypeText
Phyrexian Portal 3Artifact {3}: If your library has ten or more cards in it, target opponent looks at the top ten cards of your library and separates them into two face-down piles. Exile one of those piles. Search the other pile for a card, put it into your hand, then shuffle the rest of that pile into your library.
Gale's Redirection 3UUInstant Exile target spell, then roll a d20 and add that spell's mana value. 1—14 | You may cast the exiled card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast that spell. 15+ | You may cast the exiled card without paying its mana cost for as long as it remains exiled.
Secret Base Land {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a spell that shares a watermark with Secret Base.
A-Jade Orb of Dragonkind 2GArtifact {T}: Add one mana of any color. When you spend this mana to cast a Dragon creature spell, it enters the battlefield with an additional +1/+1 counter on it and gains hexproof until your next turn.
Intrepid Paleontologist 1GCreature — Human Druid {T}: Add one mana of any color. {2}: Exile target card from a graveyard. You may cast Dinosaur creature spells from among cards you own exiled with Intrepid Paleontologist. If you cast a spell this way, that creature enters the battlefield with a finality counter on it. (If a creature with a finality counter on it would die, exile it instead.) 2/2
A-Lapis Orb of Dragonkind 2UArtifact {T}: Add one mana of any color. When you spend this mana to cast a Dragon creature spell, scry 2.
Eye of Duskmantle 5BBCreature — Eye Flying, lifelink You may play lands and cast spells from among cards in your graveyard you've surveilled this turn. If you cast a spell this way, you pay life equal to its mana value rather than paying its mana cost. 3/8
Throne of Eldraine 5Legendary Artifact As Throne of Eldraine enters the battlefield, choose a color. {T}: Add four mana of the chosen color. Spend this mana only to cast monocolored spells of that color. {3}, {T}: Draw two cards. Spend only mana of the chosen color to activate this ability.
Prophecy WSorcery Reveal the top card of target opponent's library. If it's a land, you gain 1 life. Then that player shuffles. Draw a card at the beginning of the next turn's upkeep.
Svella, Ice Shaper 1RGLegendary Snow Creature — Troll Warrior {3}, {T}: Create a colorless snow artifact token named Icy Manalith with "{T}: Add one mana of any color." {6}{R}{G}, {T}: Look at the top four cards of your library. You may cast a spell from among them without paying its mana cost. Put the rest on the bottom of your library in a random order. 2/4
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