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
Norritt 3BCreature — Imp {T}: Untap target blue creature. {T}: Choose target non-Wall creature the active player has controlled continuously since the beginning of the turn. That creature attacks this turn if able. Destroy it at the beginning of the next end step if it didn't attack this turn. Activate only before attackers are declared. 1/1
Killer Instinct 4RGEnchantment At the beginning of your upkeep, reveal the top card of your library. If it's a creature card, put it onto the battlefield. That creature gains haste until end of turn. Sacrifice it at the beginning of the next end step.
Fall of the Thran 5WEnchantment — Saga (As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I — Destroy all lands. II, III — Each player returns two land cards from their graveyard to the battlefield.
Thought Erasure UBSorcery Target opponent reveals their hand. You choose a nonland card from it. That player discards that card. Surveil 1. (Look at the top card of your library. You may put it into your graveyard.)
Subcontract BSorcery A person outside the game looks at target opponent's hand and chooses a nonland card from it. That player discards that card.
Krenko's Buzzcrusher 2RRArtifact Creature — Insect Thopter Flying, trample When Krenko's Buzzcrusher enters the battlefield, for each player, destroy up to one nonbasic land that player controls. For each land destroyed this way, its controller may search their library for a basic land card, put it onto the battlefield tapped, then shuffle. 4/4
Slaughter the Strong 1WWSorcery Each player chooses any number of creatures they control with total power 4 or less, then sacrifices all other creatures they control.
Double Play 3GGSorcery Choose another player. Search your library for a basic land card, put it onto the battlefield, then shuffle. At the beginning of the first upkeep in your next game with that player, search your library for a basic land card, put it onto the battlefield, then shuffle.
Trade Secrets 1UUSorcery Target opponent draws two cards, then you draw up to four cards. That opponent may repeat this process as many times as they choose.
Serenity 1WEnchantment At the beginning of your upkeep, destroy all artifacts and enchantments. They can't be regenerated.
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