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
Elspeth's Nightmare 2BEnchantment — Saga (As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I — Destroy target creature an opponent controls with power 2 or less. II — Target opponent reveals their hand. You choose a noncreature, nonland card from it. That player discards that card. III — Exile target opponent's graveyard.
Queen Marchesa 1RWBLegendary Creature — Human Assassin Deathtouch, haste When Queen Marchesa enters the battlefield, you become the monarch. At the beginning of your upkeep, if an opponent is the monarch, create a 1/1 black Assassin creature token with deathtouch and haste. 3/3
Silverflame Ritual 3WSorcery Put a +1/+1 counter on each creature you control. Adamant — If at least three white mana was spent to cast this spell, creatures you control gain vigilance until end of turn.
Fortunate Few 3WWSorcery Choose a nonland permanent you don't control, then each other player chooses a nonland permanent they don't control that hasn't been chosen this way. Destroy all other nonland permanents.
Bringer of the White Dawn 7WWCreature — Bringer You may pay {W}{U}{B}{R}{G} rather than pay this spell's mana cost. Trample At the beginning of your upkeep, you may return target artifact card from your graveyard to the battlefield. 5/5
Distended Mindbender 8Creature — Eldrazi Insect Emerge {5}{B}{B} (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value.) When you cast this spell, target opponent reveals their hand. You choose from it a nonland card with mana value 3 or less and a card with mana value 4 or greater. That player discards those cards. 5/5
Nakaya Shade 1BCreature — Shade {B}: Nakaya Shade gets +1/+1 until end of turn unless any player pays {2}. 1/1
Infernal Denizen 7BCreature — Demon At the beginning of your upkeep, sacrifice two Swamps. If you can't, tap Infernal Denizen, and an opponent may gain control of a creature you control of their choice for as long as Infernal Denizen remains on the battlefield. {T}: Gain control of target creature for as long as Infernal Denizen remains on the battlefield. 5/7
Flames of Moradin 2RRSorcery Destroy up to three target artifacts. Conjure a duplicate of each nontoken artifact destroyed this way into your hand. The duplicates perpetually gain "You may pay {R} rather than pay this spell's mana cost" and "At the beginning of your end step, sacrifice this artifact."
Dreamborn Muse 2UUCreature — Spirit At the beginning of each player's upkeep, that player mills X cards, where X is the number of cards in their hand. 2/2
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