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
Phantasmal Extraction 1BSorcery If you weren't the starting player, this spell costs {1} less to cast. Target opponent reveals each nonland card in their hand with mana value 4 or less. Choose a card revealed this way or a card in their graveyard. Exile that card.
Firestorm Phoenix 4RRCreature — Phoenix Flying If Firestorm Phoenix would die, return it to its owner's hand instead. Until that player's next turn, that player plays with that card revealed in their hand and can't play it. 3/2
Baleful Beholder 4BBCreature — Beholder When Baleful Beholder enters the battlefield, choose one — • Antimagic Cone — Each opponent sacrifices an enchantment. • Fear Ray — Creatures you control gain menace until end of turn. (A creature with menace can't be blocked except by two or more creatures.) 6/5
Brass Herald 6Artifact Creature — Golem As Brass Herald enters the battlefield, choose a creature type. When Brass Herald enters the battlefield, reveal the top four cards of your library. Put all creature cards of the chosen type revealed this way into your hand and the rest on the bottom of your library in any order. Creatures of the chosen type get +1/+1. 2/2
A-Split the Spoils 1GSorcery Exile up to five target permanent cards from your graveyard and separate them into two piles. An opponent chooses one of those piles. Put that pile into your hand and the other into your graveyard. (Piles can be empty.)
Split the Spoils 2GSorcery Exile up to five target permanent cards from your graveyard and separate them into two piles. An opponent chooses one of those piles. Put that pile into your hand and the other into your graveyard. (Piles can be empty.)
Chancellor of the Spires 4UUUCreature — Phyrexian Sphinx You may reveal this card from your opening hand. If you do, at the beginning of the first upkeep, each opponent mills seven cards. Flying When Chancellor of the Spires enters the battlefield, you may cast target instant or sorcery card from an opponent's graveyard without paying its mana cost. 5/7
Urban Burgeoning GEnchantment — Aura Enchant land Enchanted land has "Untap this land during each other player's untap step."
Lair of the Hydra Land If you control two or more other lands, Lair of the Hydra enters the battlefield tapped. {T}: Add {G}. {X}{G}: Until end of turn, Lair of the Hydra becomes an X/X green Hydra creature. It's still a land. X can't be 0.
A-Baleful Beholder 4BBCreature — Beholder When Baleful Beholder enters the battlefield, choose one — • Antimagic Cone — Each opponent sacrifices an enchantment. • Fear Ray — Creatures you control gain menace until end of turn. (A creature with menace can't be blocked except by two or more creatures.) 7/5
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