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
Pyrostatic Pillar 1REnchantment Whenever a player casts a spell with mana value 3 or less, Pyrostatic Pillar deals 2 damage to that player.
Trusted Advisor UCreature — Human Advisor Your maximum hand size is increased by two. At the beginning of your upkeep, return a blue creature you control to its owner's hand. 1/2
Vodalian Arcanist 1UCreature — Merfolk Wizard {T}: Add {C}. Spend this mana only to cast an instant or sorcery spell. 1/3
Breena, the Demagogue 1WBLegendary Creature — Bird Warlock Flying Whenever a player attacks one of your opponents, if that opponent has more life than another of your opponents, that attacking player draws a card and you put two +1/+1 counters on a creature you control. 1/3
Reckoner Shakedown 2BSorcery Target opponent reveals their hand. You may choose a nonland card from it. If you do, that player discards that card. If you don't, put two +1/+1 counters on a creature or Vehicle you control.
Louvaq, the Aberrant 2GULegendary Creature — Mutant Protection from modified creatures (Modified creatures have a power, toughness, or ability different than their printed versions.) At the beginning of each player's end step, you may put a +1/+1 counter on target creature that player controls. 3/4
Peacekeeper 2WCreature — Human At the beginning of your upkeep, sacrifice Peacekeeper unless you pay {1}{W}. Creatures can't attack. 1/1
Imposing Grandeur 4RSorcery Each player may discard their hand and draw cards equal to the greatest mana value of a commander they own on the battlefield or in the command zone.
Skarrg Guildmage RGCreature — Human Shaman {R}{G}: Creatures you control gain trample until end of turn. {1}{R}{G}: Target land you control becomes a 4/4 Elemental creature until end of turn. It's still a land. 2/2
Hall of Mirrors Artifact — Attraction Visit — Choose target creature you control. Each other creature you control becomes a copy of that creature until end of turn, except it isn't legendary.
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