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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
Butcher Orgg 4RRRCreature — Orgg You may assign Butcher Orgg's combat damage divided as you choose among defending player and/or any number of creatures they control. 6/6
The Torment of Gollum 3BSorcery Target opponent reveals their hand. You choose a nonland card from it. That player discards that card. Amass Orcs 2. (Put two +1/+1 counters on an Army you control. It's also an Orc. If you don't control an Army, create a 0/0 black Orc Army creature token first.)
James, Wandering Dad 2ULegendary Creature — Human Scientist {T}: Add {C}{C}. Spend this mana only to activate abilities. 2/4
Defective Detective 2UCreature — Human Spy Defective Detective can't be blocked. When Defective Detective enters the battlefield, a person outside the game looks at target opponent's hand and chooses a card from it. That player reveals that card. 2/1
Mirror of the Forebears 2Artifact As Mirror of the Forebears enters the battlefield, choose a creature type. {1}: Until end of turn, Mirror of the Forebears becomes a copy of target creature you control of the chosen type, except it's an artifact in addition to its other types.
Vile Consumption 1UBEnchantment All creatures have "At the beginning of your upkeep, sacrifice this creature unless you pay 1 life."
Argentum Masticore 5Artifact Creature — Phyrexian Masticore First strike, protection from multicolored At the beginning of your upkeep, sacrifice Argentum Masticore unless you discard a card. When you discard a card this way, destroy target nonland permanent an opponent controls with mana value less than or equal to the mana value of the discarded card. 5/5
Chandra, Hope's Beacon 4RRLegendary Planeswalker — Chandra Whenever you cast an instant or sorcery spell, copy it. You may choose new targets for the copy. This ability triggers only once each turn. [+2]: Add two mana in any combination of colors. [+1]: Exile the top five cards of your library. Until the end of your next turn, you may cast an instant or sorcery spell from among those exiled cards. [−X]: Chandra, Hope's Beacon deals X damage to each of up to two targets. Loyalty 5
Demon of Fate's Design 4BBEnchantment Creature — Demon Flying, trample Once during each of your turns, you may cast an enchantment spell by paying life equal to its mana value rather than paying its mana cost. {2}{B}, Sacrifice another enchantment: Demon of Fate's Design gets +X/+0 until end of turn, where X is the sacrificed enchantment's mana value. 6/6
Belbe's Portal 5Artifact As Belbe's Portal enters the battlefield, choose a creature type. {3}, {T}: You may put a creature card of the chosen type from your hand onto the battlefield.
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