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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
Chandra's Embercat 1RCreature — Elemental Cat {T}: Add {R}. Spend this mana only to cast an Elemental spell or a Chandra planeswalker spell. 2/2
Plargg and Nassari 3RRLegendary Creature — Orc Efreet At the beginning of your upkeep, each player exiles cards from the top of their library until they exile a nonland card. An opponent chooses a nonland card exiled this way. You may cast up to two spells from among the other cards exiled this way without paying their mana costs. 5/4
Doom Cannon 6Artifact As Doom Cannon enters the battlefield, choose a creature type. {3}, {T}, Sacrifice a creature of the chosen type: Doom Cannon deals 3 damage to any target.
Honden of Cleansing Fire 3WLegendary Enchantment — Shrine At the beginning of your upkeep, you gain 2 life for each Shrine you control.
Sphinx's Tutelage 2UEnchantment Whenever you draw a card, target opponent mills two cards. If two nonland cards that share a color were milled this way, repeat this process. {5}{U}: Draw a card, then discard a card.
Early Harvest 1GGInstant Target player untaps all basic lands they control.
Everybody Lives! 1WInstant All creatures gain hexproof and indestructible until end of turn. Players gain hexproof until end of turn. Players can't lose life this turn and players can't lose the game or win the game this turn.
Brushstroke Paintermage 3UCreature — Human Wizard {T}: Target permanent's artist becomes the artist of your choice until end of turn. 2/3
Antagonism 3REnchantment At the beginning of each player's end step, Antagonism deals 2 damage to that player unless one of their opponents was dealt damage this turn.
Cyclopean Tomb 4Artifact {2}, {T}: Put a mire counter on target non-Swamp land. That land is a Swamp for as long as it has a mire counter on it. Activate only during your upkeep. When Cyclopean Tomb is put into a graveyard from the battlefield, at the beginning of each of your upkeeps for the rest of the game, remove all mire counters from a land that a mire counter was put onto with Cyclopean Tomb but that a mire counter has not been removed from with Cyclopean Tomb.
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