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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
Chronic Flooding 1UEnchantment — Aura Enchant land Whenever enchanted land becomes tapped, its controller mills three cards.
Ingenious Skaab 2UCreature — Zombie Horror Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) {U}: Ingenious Skaab gets +1/-1 until end of turn. 2/3
Slimy Dualleech 3BCreature — Leech At the beginning of combat on your turn, target creature you control with power 2 or less gets +1/+0 and gains deathtouch until end of turn. 2/4
Infectious Curse Enchantment — Aura Curse Enchant player Spells you cast that target enchanted player cost {1} less to cast. At the beginning of enchanted player's upkeep, that player loses 1 life and you gain 1 life.
Honden of Life's Web 4GLegendary Enchantment — Shrine At the beginning of your upkeep, create a 1/1 colorless Spirit creature token for each Shrine you control.
Refraction Trap 3WInstant — Trap If an opponent cast a red instant or sorcery spell this turn, you may pay {W} rather than pay this spell's mana cost. Prevent the next 3 damage that a source of your choice would deal to you and/or permanents you control this turn. If damage is prevented this way, Refraction Trap deals that much damage to any target.
Revelation GWorld Enchantment Players play with their hands revealed.
Telepathy UEnchantment Your opponents play with their hands revealed.
Evolutionary Escalation 1GEnchantment At the beginning of your upkeep, put three +1/+1 counters on target creature you control and three +1/+1 counters on target creature an opponent controls.
Mana Vault 1Artifact Mana Vault doesn't untap during your untap step. At the beginning of your upkeep, you may pay {4}. If you do, untap Mana Vault. At the beginning of your draw step, if Mana Vault is tapped, it deals 1 damage to you. {T}: Add {C}{C}{C}.
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