Card Codex

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17 May 2024: Card library updated.

Hall of Gemstone

1GG · World Enchantment

At the beginning of each player's upkeep, that player chooses a color. Until end of turn, lands tapped for mana produce mana of the chosen color instead of any other color.

Similar cards

Color identity:
NameManaTypeText
Sleight of Mind UInstant Change the text of target spell or permanent by replacing all instances of one color word with another. (For example, you may change "target black spell" to "target blue spell." This effect lasts indefinitely.)
Glamerdye 1UInstant Change the text of target spell or permanent by replacing all instances of one color word with another. Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)
Adarkar Unicorn 1WWCreature — Unicorn {T}: Add {U} or {C}{U}. Spend this mana only to pay cumulative upkeep costs. 2/2
Imperiosaur 2GGCreature — Dinosaur Spend only mana produced by basic lands to cast this spell. 5/5
Sanctum of the Sun Legendary Land (Transforms from Azor's Gateway.) {T}: Add X mana of any one color, where X is your life total.
Defiler of Souls 3BBRCreature — Demon Flying At the beginning of each player's upkeep, that player sacrifices a monocolored creature. 5/5
The Golden Throne 4Legendary Artifact Arcane Life-support — If you would lose the game, instead exile The Golden Throne and your life total becomes 1. A Thousand Souls Die Every Day — {T}, Sacrifice a creature: Add three mana in any combination of colors.
Censorship UEnchantment As Censorship enters the battlefield, choose a word. Whenever a player says the chosen word, Censorship deals 2 damage to that player.
Overlaid Terrain 2GGEnchantment As Overlaid Terrain enters the battlefield, sacrifice all lands you control. Lands you control have "{T}: Add two mana of any one color."
Key to the Archive 4Artifact Key to the Archive enters the battlefield tapped. When Key to the Archive enters the battlefield, draft a card from Key to the Archive's spellbook, then discard a card. {T}: Add two mana in any combination of colors.
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