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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
Puffer Extract 5Artifact {X}, {T}: Target creature you control gets +X/+X until end of turn. Destroy it at the beginning of the next end step.
Dega Sanctuary 2WEnchantment At the beginning of your upkeep, if you control a black or red permanent, you gain 2 life. If you control a black permanent and a red permanent, you gain 4 life instead.
Helldozer 3BBBCreature — Zombie Giant {B}{B}{B}, {T}: Destroy target land. If that land was nonbasic, untap Helldozer. 6/5
Wave-Wing Elemental 5UCreature — Elemental Flying Landfall — Whenever a land enters the battlefield under your control, Wave-Wing Elemental gets +2/+2 until end of turn. 3/4
Yavimaya Ancients 3GGCreature — Treefolk {G}: Yavimaya Ancients gets +1/-2 until end of turn. 2/7
Olivia's Midnight Ambush 1BInstant Target creature gets -2/-2 until end of turn. If it's night, that creature gets -13/-13 until end of turn instead.
Swooping Pteranodon 3RWCreature — Dinosaur Flying, haste Whenever Swooping Pteranodon or another Dinosaur with flying enters the battlefield under your control, gain control of target creature an opponent controls until end of turn. Untap that creature. It gains flying and haste until end of turn. At the beginning of the next end step, target land deals 3 damage to that creature. 3/3
Component Pouch 3Artifact {T}, Remove a component counter from Component Pouch: Add two mana of different colors. {T}: Roll a d20. 1—9 | Put a component counter on Component Pouch. 10—20 | Put two component counters on Component Pouch.
Paralyze BEnchantment — Aura Enchant creature When Paralyze enters the battlefield, tap enchanted creature. Enchanted creature doesn't untap during its controller's untap step. At the beginning of the upkeep of enchanted creature's controller, that player may pay {4}. If the player does, untap the creature.
Howling Moon 2GEnchantment At the beginning of combat on your turn, target Wolf or Werewolf you control gets +2/+2 until end of turn. Whenever an opponent casts their second spell each turn, create a 2/2 green Wolf creature token.
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