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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
Food Chain 2GEnchantment Exile a creature you control: Add X mana of any one color, where X is 1 plus the exiled creature's mana value. Spend this mana only to cast creature spells.
Predators' Hour 1BSorcery Until end of turn, creatures you control gain menace and "Whenever this creature deals combat damage to a player, exile the top card of that player's library face down. You may look at and play that 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."
Shaman of Forgotten Ways 2GCreature — Human Shaman {T}: Add two mana in any combination of colors. Spend this mana only to cast creature spells. Formidable — {9}{G}{G}, {T}: Each player's life total becomes the number of creatures they control. Activate only if creatures you control have total power 8 or greater. 2/3
Ashling's Prerogative 1REnchantment As Ashling's Prerogative enters the battlefield, choose odd or even. (Zero is even.) Each creature with mana value of the chosen quality has haste. Each creature without mana value of the chosen quality enters the battlefield tapped.
Fatespinner 1UUCreature — Human Wizard At the beginning of each opponent's upkeep, that player chooses draw step, main phase, or combat phase. The player skips each instance of the chosen step or phase this turn. 1/2
Common Cause 2WEnchantment Nonartifact creatures get +2/+2 as long as they all share a color.
Grenzo, Havoc Raiser RRLegendary Creature — Goblin Rogue Whenever a creature you control deals combat damage to a player, choose one — • Goad target creature that player controls. • Exile the top card of that player's library. Until end of turn, you may cast that card and you may spend mana as though it were mana of any color to cast that spell. 2/2
Keeper of the Sacred Word 2GCreature — Human Druid As Keeper of the Sacred Word enters the battlefield, choose a word. Whenever an opponent says the chosen word, Keeper of the Sacred Word gets +3/+3 until end of turn. 2/3
Skyrider Elf XGUCreature — Elf Warrior Ally Flying Converge — Skyrider Elf enters the battlefield with a +1/+1 counter on it for each color of mana spent to cast it. 0/0
Resilient Wanderer 2WWCreature — Human Nomad First strike Discard a card: Resilient Wanderer gains protection from the color of your choice until end of turn. 2/3
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