Card Codex

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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
Stamp of Approval 3Artifact As Stamp of Approval enters the battlefield, choose a watermark. Creatures you control with the chosen watermark get +1/+1.
Moonveil Regent 3RCreature — Dragon Flying Whenever you cast a spell, you may discard your hand. If you do, draw a card for each of that spell's colors. When Moonveil Regent dies, it deals X damage to any target, where X is the number of colors among permanents you control. 4/4
Cleansing Beam 4RInstant Radiance — Cleansing Beam deals 2 damage to target creature and each other creature that shares a color with it.
Call to the Void 4BSorcery Each player secretly chooses a creature they control and a creature they don't control. Then those choices are revealed. Destroy each creature chosen this way.
Sulam Djinn 5GCreature — Djinn Trample Sulam Djinn gets -2/-2 as long as green is the most common color among all permanents or is tied for most common. 6/6
Zaxara, the Exemplary 1BGULegendary Creature — Nightmare Hydra Deathtouch {T}: Add two mana of any one color. Whenever you cast a spell with {X} in its mana cost, create a 0/0 green Hydra creature token, then put X +1/+1 counters on it. 2/3
Prismatic Ending XWSorcery Converge — Exile target nonland permanent if its mana value is less than or equal to the number of colors of mana spent to cast this spell.
Worry Beads 3Artifact At the beginning of each player's upkeep, that player mills a card.
Halam Djinn 5RCreature — Djinn Haste Halam Djinn gets -2/-2 as long as red is the most common color among all permanents or is tied for most common. 6/5
Trait Doctoring USorcery Change the text of target permanent by replacing all instances of one color word with another or one basic land type with another until end of turn. Cipher (Then you may exile this spell card encoded on a creature you control. Whenever that creature deals combat damage to a player, its controller may cast a copy of the encoded card without paying its mana cost.)
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