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
Apathy UEnchantment — Aura Enchant creature Enchanted creature doesn't untap during its controller's untap step. At the beginning of the upkeep of enchanted creature's controller, that player may discard a card at random. If the player does, untap that creature.
Woodlot Crawler UBCreature — Insect Forestwalk (This creature can't be blocked as long as defending player controls a Forest.) Protection from green 2/1
Whirling Dervish GGCreature — Human Monk Protection from black At the beginning of each end step, if Whirling Dervish dealt damage to an opponent this turn, put a +1/+1 counter on it. 1/1
Crystalline Giant 3Artifact Creature — Giant At the beginning of combat on your turn, choose a kind of counter at random that Crystalline Giant doesn't have on it from among flying, first strike, deathtouch, hexproof, lifelink, menace, reach, trample, vigilance, and +1/+1. Put a counter of that kind on Crystalline Giant. 3/3
Shadrix Silverquill 3WBLegendary Creature — Elder Dragon Flying, double strike At the beginning of combat on your turn, you may choose two. Each mode must target a different player. • Target player creates a 2/1 white and black Inkling creature token with flying. • Target player draws a card and loses 1 life. • Target player puts a +1/+1 counter on each creature they control. 2/5
Mirrored Depths Plane — Karsus Whenever a player casts a spell, that player flips a coin. If the player loses the flip, counter that spell. Whenever chaos ensues, target player reveals the top card of their library. If it's a nonland card, you may cast it without paying its mana cost.
Combat Professor 3WCreature — Bird Cleric Flying At the beginning of combat on your turn, target creature you control gets +1/+0 and gains vigilance until end of turn. 2/3
Stormchaser Chimera 2URCreature — Chimera Flying {2}{U}{R}: Scry 1, then reveal the top card of your library. Stormchaser Chimera gets +X/+0 until end of turn, where X is that card's mana value. (To scry 1, look at the top card of your library, then you may put that card on the bottom of your library.) 2/3
Ephemeral Shields 1WInstant Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Target creature gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)
Cultist of the Absolute BLegendary Enchantment — Background Commander creatures you own get +3/+3 and have flying, deathtouch, "Ward—Pay 3 life," and "At the beginning of your upkeep, sacrifice a creature."
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