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
Heartmender 2G/WG/WCreature — Elemental At the beginning of your upkeep, remove a -1/-1 counter from each creature you control. Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.) 2/2
Sacrifice Play 2WInstant A person outside the game chooses an attacking or blocking creature target opponent controls. That player sacrifices that creature.
Brainbite 2UBSorcery Target opponent reveals their hand. You choose a card from it. That player discards that card. Draw a card.
In the Eye of Chaos 2UWorld Enchantment Whenever a player casts an instant spell, counter it unless that player pays {X}, where X is its mana value.
Time Stop 4UUInstant End the turn. (Exile all spells and abilities from the stack, including this card. The player whose turn it is discards down to their maximum hand size. Damage wears off, and "this turn" and "until end of turn" effects end.)
Conundrum Sphinx 2UUCreature — Sphinx Flying Whenever Conundrum Sphinx attacks, each player chooses a card name. Then each player reveals the top card of their library. If the card a player revealed has the name they chose, that player puts it into their hand. If it doesn't, that player puts it on the bottom of their library. 4/4
Deep Spawn 5UUUCreature — Homarid Trample At the beginning of your upkeep, sacrifice Deep Spawn unless you mill two cards. {U}: Deep Spawn gains shroud until end of turn and doesn't untap during your next untap step. Tap Deep Spawn. (A creature with shroud can't be the target of spells or abilities.) 6/6
Search for Survivors 2RSorcery Reorder your graveyard at random. An opponent chooses a card at random in your graveyard. If it's a creature card, put it onto the battlefield. Otherwise, exile it.
Lone Wolf of the Natterknolls Creature — Werewolf Whenever an opponent casts a spell during your turn, draw two cards. At the beginning of each upkeep, if a player cast two or more spells last turn, transform Lone Wolf of the Natterknolls. 3/5
Greater Harvester 2BBBCreature — Horror At the beginning of your upkeep, sacrifice a permanent. Whenever Greater Harvester deals combat damage to a player, that player sacrifices two permanents. 5/6
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