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
Prismatic Boon XWUInstant Choose a color. X target creatures gain protection from the chosen color until end of turn.
Paradise Plume 4Artifact As Paradise Plume enters the battlefield, choose a color. Whenever a player casts a spell of the chosen color, you may gain 1 life. {T}: Add one mana of the chosen color.
Transguild Courier 4Artifact Creature — Golem Transguild Courier is all colors. 3/3
Alloy Golem 6Artifact Creature — Golem As Alloy Golem enters the battlefield, choose a color. Alloy Golem is the chosen color. (It's still an artifact.) 4/4
Nykthos, Shrine to Nyx Legendary Land {T}: Add {C}. {2}, {T}: Choose a color. Add an amount of mana of that color equal to your devotion to that color. (Your devotion to a color is the number of mana symbols of that color in the mana costs of permanents you control.)
Ward Sliver 4WCreature — Sliver As Ward Sliver enters the battlefield, choose a color. All Slivers have protection from the chosen color. 2/2
Spectral Searchlight 3Artifact {T}: Choose a player. That player adds one mana of any color they choose.
Scuttlemutt 3Artifact Creature — Scarecrow {T}: Add one mana of any color. {T}: Target creature becomes the color or colors of your choice until end of turn. 2/2
Rhystic Cave Land {T}: Choose a color. Add one mana of that color unless any player pays {1}. Activate only as an instant.
Captivating Crossroads Land During your first three turns of the game, Captivating Crossroads enters the battlefield tapped if you were the starting player. As Captivating Crossroads enters the battlefield, choose a color. {T}: Add one mana of the chosen color.
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