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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
Breeches, Brazen Plunderer 3RLegendary Creature — Goblin Pirate Menace Whenever one or more Pirates you control deal damage to your opponents, exile the top card of each of those opponents' libraries. You may play those cards this turn, and you may spend mana as though it were mana of any color to cast those spells. Partner (You can have two commanders if both have partner.) 3/3
Grand Coliseum Land Grand Coliseum enters the battlefield tapped. {T}: Add {C}. {T}: Add one mana of any color. Grand Coliseum deals 1 damage to you.
Benthic Explorers 3UCreature — Merfolk Scout {T}, Untap a tapped land an opponent controls: Add one mana of any type that land could produce. 2/4
The Mycosynth Gardens Land — Sphere {T}: Add {C}. {1}, {T}: Add one mana of any color. {X}, {T}: The Mycosynth Gardens becomes a copy of target nontoken artifact you control with mana value X.
Pristine Skywise 4WUCreature — Dragon Flying Whenever you cast a noncreature spell, untap Pristine Skywise. It gains protection from the color of your choice until end of turn. 6/4
Power Depot Artifact Land Power Depot enters the battlefield tapped. {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast artifact spells or activate abilities of artifacts. Modular 1
The Secret Lair Legendary Land — Lair {T}: Add {C}. {T}, Say the secret word: Add one mana of any color. Scry 1. You gain 1 life.
Buried Treasure 2Artifact — Treasure {T}, Sacrifice Buried Treasure: Add one mana of any color. {5}, Exile Buried Treasure from your graveyard: Discover 5. Activate only as a sorcery. (Exile cards from the top of your library until you exile a nonland card with mana value 5 or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.)
Intrepid Stablemaster 1GCreature — Human Scout Reach {T}: Add {G}. {T}: Add two mana of any one color. Spend this mana only to cast Mount or Vehicle spells. 2/2
Carpet of Flowers GEnchantment At the beginning of each of your main phases, if you haven't added mana with this ability this turn, you may add X mana of any one color, where X is the number of Islands target opponent controls.
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