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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
Jolrael, Empress of Beasts 3GGLegendary Creature — Human Spellshaper {2}{G}, {T}, Discard two cards: All lands target player controls become 3/3 creatures until end of turn. They're still lands. 3/3
Eunuchs' Intrigues 2RSorcery Target opponent chooses a creature they control. Other creatures they control can't block this turn.
Goblin War Cry 2RSorcery Target opponent chooses a creature they control. Other creatures they control can't block this turn.
Telim'Tor's Edict RInstant Exile target permanent you own or control. Draw a card at the beginning of the next turn's upkeep.
Standardize UUInstant Choose a creature type other than Wall. Each creature becomes that type until end of turn.
Law-Rune Enforcer WCreature — Human Soldier {1}, {T}: Tap target creature with mana value 2 or greater. 1/2
Day of the Moon 2REnchantment — Saga (As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I, II, III — Choose a creature card name, then goad all creatures with a name chosen for Day of the Moon. (Until your next turn, they attack each combat if able and attack a player other than you if able.)
Smuggler's Share 2WEnchantment At the beginning of each end step, draw a card for each opponent who drew two or more cards this turn, then create a Treasure token for each opponent who had two or more lands enter the battlefield under their control this turn.
Armageddon Clock 6Artifact At the beginning of your upkeep, put a doom counter on Armageddon Clock. At the beginning of your draw step, Armageddon Clock deals damage equal to the number of doom counters on it to each player. {4}: Remove a doom counter from Armageddon Clock. Any player may activate this ability but only during any upkeep step.
Leyline of the Void 2BBEnchantment If Leyline of the Void is in your opening hand, you may begin the game with it on the battlefield. If a card would be put into an opponent's graveyard from anywhere, exile it instead.
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