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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
Slithermuse 2UUCreature — Elemental When Slithermuse leaves the battlefield, choose an opponent. If that player has more cards in hand than you, draw cards equal to the difference. Evoke {3}{U} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters the battlefield.) 3/3
Magus of the Abyss 3BCreature — Human Wizard At the beginning of each player's upkeep, destroy target nonartifact creature that player controls of their choice. It can't be regenerated. 4/3
Gilanra, Caller of Wirewood 2GLegendary Creature — Elf Druid {T}: Add {G}. When you spend this mana to cast a spell with mana value 6 or greater, draw a card. Partner (You can have two commanders if both have partner.) 1/2
Grave Betrayal 5BBEnchantment Whenever a creature you don't control dies, return it to the battlefield under your control with an additional +1/+1 counter on it at the beginning of the next end step. That creature is a black Zombie in addition to its other colors and types.
Bane of Hanweir Creature — Werewolf Bane of Hanweir attacks each combat if able. At the beginning of each upkeep, if a player cast two or more spells last turn, transform Bane of Hanweir. 5/5
Cruel Reality 5BBEnchantment — Aura Curse Enchant player At the beginning of enchanted player's upkeep, that player sacrifices a creature or planeswalker. If the player can't, they lose 5 life.
Rites of Flourishing 2GEnchantment At the beginning of each player's draw step, that player draws an additional card. Each player may play an additional land on each of their turns.
Reidane, God of the Worthy 2WLegendary Creature — God Flying, vigilance Snow lands your opponents control enter the battlefield tapped. Noncreature spells your opponents cast with mana value 4 or greater cost {2} more to cast. 2/3
Empowered Autogenerator 4Artifact Empowered Autogenerator enters the battlefield tapped. {T}: Put a charge counter on Empowered Autogenerator. Add X mana of any one color, where X is the number of charge counters on Empowered Autogenerator.
Canker Abomination 2B/GB/GCreature — Treefolk Horror As Canker Abomination enters the battlefield, choose an opponent. Canker Abomination enters the battlefield with a -1/-1 counter on it for each creature that player controls. 6/6
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