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
Skullcage 4Artifact At the beginning of each opponent's upkeep, Skullcage deals 2 damage to that player unless they have exactly three or exactly four cards in hand.
Struggle for Project Purity 3UEnchantment As Struggle for Project Purity enters the battlefield, choose Brotherhood or Enclave. • Brotherhood — At the beginning of your upkeep, each opponent draws a card. You draw a card for each card drawn this way. • Enclave — Whenever a player attacks you with one or more creatures, that player gets twice that many rad counters.
Sanctimony 1WEnchantment Whenever an opponent taps a Mountain for mana, you may gain 1 life.
Thran Portal Land — Gate Thran Portal enters the battlefield tapped unless you control two or fewer other lands. As Thran Portal enters the battlefield, choose a basic land type. Thran Portal is the chosen type in addition to its other types. Mana abilities of Thran Portal cost an additional 1 life to activate.
Wrenn and Realmbreaker 1GGLegendary Planeswalker — Wrenn Lands you control have "{T}: Add one mana of any color." [+1]: Up to one target land you control becomes a 3/3 Elemental creature with vigilance, hexproof, and haste until your next turn. It's still a land. [−2]: Mill three cards. You may put a permanent card from among the milled cards into your hand. [−7]: You get an emblem with "You may play lands and cast permanent spells from your graveyard." Loyalty 4
Town-Razer Tyrant 2RRCreature — Dragon Flying When Town-Razer Tyrant enters the battlefield, target nonbasic land you don't control loses all abilities except mana abilities and gains "At the beginning of your upkeep, this permanent deals 2 damage to you unless you sacrifice it." 4/4
Phyrexian Vatmother 2BBCreature — Phyrexian Horror Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) At the beginning of your upkeep, you get a poison counter. 4/5
The Celestus 3Legendary Artifact If it's neither day nor night, it becomes day as The Celestus enters the battlefield. {T}: Add one mana of any color. {3}, {T}: If it's night, it becomes day. Otherwise, it becomes night. Activate only as a sorcery. Whenever day becomes night or night becomes day, you gain 1 life. You may draw a card. If you do, discard a card.
Custody Battle 1REnchantment — Aura Enchant creature Enchanted creature has "At the beginning of your upkeep, target opponent gains control of this creature unless you sacrifice a land."
Zhur-Taa Druid RGCreature — Human Druid {T}: Add {G}. Whenever you tap Zhur-Taa Druid for mana, it deals 1 damage to each opponent. 1/1
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