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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
Curse of Chaos 2REnchantment — Aura Curse Enchant player Whenever a player attacks enchanted player with one or more creatures, that attacking player may discard a card. If the player does, they draw a card.
Gigadrowse UInstant Replicate {U} (When you cast this spell, copy it for each time you paid its replicate cost. You may choose new targets for the copies.) Tap target permanent.
Unleash Fury 1RInstant Double the power of target creature until end of turn.
Burning of Xinye 4RRSorcery You destroy four lands you control, then target opponent destroys four lands they control. Then Burning of Xinye deals 4 damage to each creature.
Cannibalize 1BSorcery Choose two target creatures controlled by the same player. Exile one of those creatures and put two +1/+1 counters on the other.
Camouflage GInstant Cast this spell only during your declare attackers step. This turn, instead of declaring blockers, each defending player chooses any number of creatures they control and divides them into a number of piles equal to the number of attacking creatures for whom that player is the defending player. Creatures those players control that can block additional creatures may likewise be put into additional piles. Assign each pile to a different one of those attacking creatures at random. Each creature in a pile that can block the creature that pile is assigned to does so. (Piles can be empty.)
Frenzied Gorespawn 3BRCreature — Horror When Frenzied Gorespawn enters the battlefield, for each opponent, goad target creature that player controls. (Until your next turn, those creatures attack each combat if able and attack a player other than you if able.) Whenever one or more creatures attack one of your opponents, those creatures gain menace until end of turn. 4/4
Unifying Theory 1UEnchantment Whenever a player casts a spell, that player may pay {2}. If the player does, they draw a card.
Tetsuo, Imperial Champion UBRLegendary Creature — Human Samurai Whenever Tetsuo, Imperial Champion attacks, if it's equipped, choose one — • Tetsuo deals damage equal to the highest mana value among Equipment attached to it to any target. • You may cast an instant or sorcery spell from your hand with mana value less than or equal to the highest mana value among Equipment attached to Tetsuo without paying its mana cost. 3/3
Time Bomb 4Artifact At the beginning of your upkeep, put a time counter on Time Bomb. {1}, {T}, Sacrifice Time Bomb: Time Bomb deals damage equal to the number of time counters on it to each creature and each player.
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