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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
Nahiri's Machinations 1WEnchantment At the beginning of combat on your turn, target creature you control gains indestructible until end of turn. {1}{R}: Nahiri's Machinations deals 1 damage to target blocking creature.
Vizkopa Confessor 3WBCreature — Human Cleric Extort (Whenever you cast a spell, you may pay {W/B}. If you do, each opponent loses 1 life and you gain that much life.) When Vizkopa Confessor enters the battlefield, pay any amount of life. Target opponent reveals that many cards from their hand. You choose one of them and exile it. 1/3
Glorious End 2RInstant 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.) At the beginning of your next end step, you lose the game.
Wandering Troubadour 3GCreature — Dragon Bard At the beginning of your end step, if you had a land enter the battlefield under your control this turn, venture into the dungeon. (Enter the first room or advance to the next room.) 4/2
Capricious Efreet 4RRCreature — Efreet At the beginning of your upkeep, choose target nonland permanent you control and up to two target nonland permanents you don't control. Destroy one of them at random. 6/4
Disciple of Phenax 2BBCreature — Human Cleric When Disciple of Phenax enters the battlefield, target player reveals a number of cards from their hand equal to your devotion to black. You choose one of them. That player discards that card. (Each {B} in the mana costs of permanents you control counts toward your devotion to black.) 1/3
Forsaken Wastes 2BWorld Enchantment Players can't gain life. At the beginning of each player's upkeep, that player loses 1 life. Whenever Forsaken Wastes becomes the target of a spell, that spell's controller loses 5 life.
1996 World Champion WUBRGSummon Legend Cannot be the target of spells or effects. World Champion has power and toughness equal to the life total of target opponent. {0}: Discard your hand to search your library for 1996 World Champion and reveal it to all players. Shuffle your library and put 1996 World Champion on top of it. Use this ability only at the beginning of your upkeep, and only if 1996 World Champion is in your library. */*
Fraying Line 4Artifact When Fraying Line enters the battlefield, put a rope counter on target creature you control. At the beginning of each player's upkeep, that player may pay {2}. If they do, they put a rope counter on a creature they control. Otherwise, exile Fraying Line and each creature without a rope counter on it, then remove all rope counters from all creatures.
Lush Growth GEnchantment — Aura Enchant land Enchanted land is a Mountain, Forest, and Plains.
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