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
Castigate WBSorcery Target opponent reveals their hand. You choose a nonland card from it and exile that card.
Night Terrors 2BSorcery Target player reveals their hand. You choose a nonland card from it. Exile that card.
Tempting Contract 4Artifact At the beginning of your upkeep, each opponent may create a Treasure token. For each opponent who does, you create a Treasure token.
Stalwart Pathlighter 2WCreature — Human Soldier Vigilance Coven — At the beginning of combat on your turn, if you control three or more creatures with different powers, creatures you control gain indestructible until end of turn. 3/1
Thieving Amalgam 5BBCreature — Ape Snake At the beginning of each opponent's upkeep, you manifest the top card of that player's library. (Put it onto the battlefield face down as a 2/2 creature. Turn it face up any time for its mana cost if it's a creature card.) Whenever a creature you control but don't own dies, its owner loses 2 life and you gain 2 life. 6/7
Rhystic Shield 1WInstant Creatures you control get +0/+1 until end of turn. They get an additional +0/+2 until end of turn unless any player pays {2}.
Arden Angel 4WWCreature — Angel Flying At the beginning of your upkeep, if Arden Angel is in your graveyard, roll a four-sided die. If the result is 1, return Arden Angel from your graveyard to the battlefield. 4/4
Snickering Squirrel BCreature — Squirrel Advisor You may tap Snickering Squirrel to increase the result of a die any player rolled by 1. 1/1
Downhill Charge 2RInstant You may sacrifice a Mountain rather than pay this spell's mana cost. Target creature gets +X/+0 until end of turn, where X is the number of Mountains you control.
Karazikar, the Eye Tyrant 3BRLegendary Creature — Beholder Whenever you attack a player, tap target creature that player controls and goad it. (Until your next turn, that creature attacks each combat if able and attacks a player other than you if able.) Whenever an opponent attacks another one of your opponents, you and the attacking player each draw a card and lose 1 life. 5/5
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