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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
Blessing of Belzenlok BInstant Target creature gets +2/+1 until end of turn. If it's legendary, it also gains lifelink until end of turn.
Malicious Eclipse 1BBSorcery All creatures get -2/-2 until end of turn. If a creature an opponent controls would die this turn, exile it instead.
Glissa Sunseeker 2GGLegendary Creature — Elf Warrior First strike {T}: Destroy target artifact if its mana value is equal to the amount of unspent mana you have. 3/2
Vitaspore Thallid 1GCreature — Fungus At the beginning of your upkeep, put a spore counter on Vitaspore Thallid. Remove three spore counters from Vitaspore Thallid: Create a 1/1 green Saproling creature token. Sacrifice a Saproling: Target creature gains haste until end of turn. 1/1
Hoard-Smelter Dragon 4RRCreature — Dragon Flying {3}{R}: Destroy target artifact. Hoard-Smelter Dragon gets +X/+0 until end of turn, where X is that artifact's mana value. 5/5
Goblin Festival 1REnchantment {2}: Goblin Festival deals 1 damage to any target. Flip a coin. If you lose the flip, choose one of your opponents. That player gains control of Goblin Festival.
Crowd Favorites 6WCreature — Human Soldier {3}{W}: Tap target creature. {3}{W}: Crowd Favorites gets +0/+5 until end of turn. 4/4
Loxodon Mystic 3WWCreature — Elephant Cleric {W}, {T}: Tap target creature. 3/3
Coercive Portal 4Artifact Will of the council — At the beginning of your upkeep, starting with you, each player votes for carnage or homage. If carnage gets more votes, sacrifice Coercive Portal and destroy all nonland permanents. If homage gets more votes or the vote is tied, draw a card.
Brooding Saurian 2GGCreature — Lizard At the beginning of each end step, each player gains control of all nontoken permanents they own. 4/4
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