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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
Sol Grail 3Artifact As Sol Grail enters the battlefield, choose a color. {T}: Add one mana of the chosen color.
Utopia Sprawl GEnchantment — Aura Enchant Forest As Utopia Sprawl enters the battlefield, choose a color. Whenever enchanted Forest is tapped for mana, its controller adds an additional one mana of the chosen color.
Paliano, the High City Legendary Land Reveal Paliano, the High City as you draft it. The player to your right chooses a color, you choose another color, then the player to your left chooses a third color. {T}: Add one mana of any color chosen as you drafted cards named Paliano, the High City.
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.
Mirage Mesa Land — Desert Mirage Mesa enters the battlefield tapped. As it enters, choose a color. {T}: Add one mana of the chosen color.
Brave the Elements WInstant Choose a color. White creatures you control gain protection from the chosen color until end of turn.
Tarnation Vista Land Tarnation Vista enters the battlefield tapped. As it enters, choose a color. {T}: Add one mana of the chosen color. {1}, {T}: For each color among monocolored permanents you control, add one mana of that color.
Swirl the Mists 2UUEnchantment As Swirl the Mists enters the battlefield, choose a color word. All instances of color words in the text of spells and permanents are changed to the chosen color word.
Call to Arms 1WEnchantment As Call to Arms enters the battlefield, choose a color and an opponent. White creatures get +1/+1 as long as the chosen color is the most common color among nontoken permanents the chosen player controls but isn't tied for most common. When the chosen color isn't the most common color among nontoken permanents the chosen player controls or is tied for most common, sacrifice Call to Arms.
Silhana Starfletcher 2GCreature — Elf Druid Archer Reach (This creature can block creatures with flying.) As Silhana Starfletcher enters the battlefield, choose a color. {T}: Add one mana of the chosen color. 1/3
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