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
Thallid GCreature — Fungus At the beginning of your upkeep, put a spore counter on Thallid. Remove three spore counters from Thallid: Create a 1/1 green Saproling creature token. 1/1
Psychotrope Thallid 2GCreature — Fungus At the beginning of your upkeep, put a spore counter on Psychotrope Thallid. Remove three spore counters from Psychotrope Thallid: Create a 1/1 green Saproling creature token. {1}, Sacrifice a Saproling: Draw a card. 1/1
Time Vault 2Artifact Time Vault enters the battlefield tapped. Time Vault doesn't untap during your untap step. If you would begin your turn while Time Vault is tapped, you may skip that turn instead. If you do, untap Time Vault. {T}: Take an extra turn after this one.
Murasa Plane — Zendikar Whenever a nontoken creature enters the battlefield, its controller may search their library for a basic land card, put it onto the battlefield tapped, then shuffle. Whenever chaos ensues, target land becomes a 4/4 creature that's still a land.
When We Were Young 3WInstant Up to two target creatures each get +2/+2 until end of turn. If you control an artifact and an enchantment, those creatures also gain lifelink until end of turn.
Shriek of Dread 1BInstant Target creature gains fear until end of turn. (It can't be blocked except by artifact creatures and/or black creatures.)
Tempest Caller 2UUCreature — Merfolk Wizard When Tempest Caller enters the battlefield, tap all creatures target opponent controls. 2/3
Mechanized Production 2UUEnchantment — Aura Enchant artifact you control At the beginning of your upkeep, create a token that's a copy of enchanted artifact. Then if you control eight or more artifacts with the same name as one another, you win the game.
Xenic Poltergeist 1BBCreature — Spirit {T}: Until your next upkeep, target noncreature artifact becomes an artifact creature with power and toughness each equal to its mana value. 1/1
Homarid Shaman 2UUCreature — Homarid Shaman {U}: Tap target green creature. 2/1
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