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
Sunbird Effigy Artifact Creature — Bird Construct Flying, vigilance, haste Sunbird Effigy's power and toughness are each equal to the number of colors among the exiled cards used to craft it. {T}: For each color among the exiled cards used to craft Sunbird Effigy, add one mana of that color. */*
Mox Opal 0Legendary Artifact Metalcraft — {T}: Add one mana of any color. Activate only if you control three or more artifacts.
City of Brass Land Whenever City of Brass becomes tapped, it deals 1 damage to you. {T}: Add one mana of any color.
Mana Confluence Land {T}, Pay 1 life: Add one mana of any color.
Phyrexian Lens 3Artifact {T}, Pay 1 life: Add one mana of any color.
Standing Stones 3Artifact {1}, {T}, Pay 1 life: Add one mana of any color.
Seal of the Guildpact 5Artifact As Seal of the Guildpact enters the battlefield, choose two colors. Each spell you cast costs {1} less to cast for each of the chosen colors it is.
A-Jade Orb of Dragonkind 2GArtifact {T}: Add one mana of any color. When you spend this mana to cast a Dragon creature spell, it enters the battlefield with an additional +1/+1 counter on it and gains hexproof until your next turn.
Bonder's Ornament 3Artifact {T}: Add one mana of any color. {4}, {T}: Each player who controls a permanent named Bonder's Ornament draws a card.
Shelter 1WInstant Target creature you control gains protection from the color of your choice until end of turn. Draw a card.
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