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
Su-Chi Cave Guard 8Artifact Creature — Construct Vigilance Ward {4} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {4}.) When Su-Chi Cave Guard dies, add eight {C}. Until end of turn, you don't lose this mana as steps and phases end. 8/8
The Fallen 1BBBCreature — Zombie At the beginning of your upkeep, The Fallen deals 1 damage to each opponent and planeswalker it has dealt damage to this game. 2/3
Root Maze GEnchantment Artifacts and lands enter the battlefield tapped.
Niveous Wisps WInstant Target creature becomes white until end of turn. Tap that creature. Draw a card.
Trouble in Pairs 2WWEnchantment If an opponent would begin an extra turn, that player skips that turn instead. Whenever an opponent attacks you with two or more creatures, draws their second card each turn, or casts their second spell each turn, you draw a card.
North Pole Research Base Plane — Earth At the beginning of your upkeep, target opponent draws a card and creates a Treasure token. Whenever chaos ensues, create a 2/2 white Alien creature token. When you do, tap target nontoken creature an opponent controls. Put a stun counter on it. (If a permanent with a stun counter would become untapped, remove one from it instead.)
Boon of Boseiju 1GInstant Target creature gets +X/+X until end of turn, where X is the greatest mana value among permanents you control. Untap it.
Ulrich of the Krallenhorde 3RGLegendary Creature — Human Werewolf Whenever this creature enters the battlefield or transforms into Ulrich of the Krallenhorde, target creature gets +4/+4 until end of turn. At the beginning of each upkeep, if no spells were cast last turn, transform Ulrich of the Krallenhorde. 4/4
Lost Hours 1BSorcery Target player reveals their hand. You choose a nonland card from it. That player puts that card into their library third from the top.
Silverquill Silencer WBCreature — Human Cleric As Silverquill Silencer enters the battlefield, choose a nonland card name. Whenever an opponent casts a spell with the chosen name, they lose 3 life and you draw a card. 3/2
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