Card Codex

M:tG card similarity search

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
Escaped Shapeshifter 3UUCreature — Shapeshifter As long as an opponent controls a creature with flying not named Escaped Shapeshifter, Escaped Shapeshifter has flying. The same is true for first strike, trample, and protection from any color. 3/4
Terror of Kruin Pass Creature — Werewolf Double strike Werewolves you control have menace. (They can't be blocked except by two or more creatures.) At the beginning of each upkeep, if a player cast two or more spells last turn, transform Terror of Kruin Pass. 3/3
Disruption Aura 2UEnchantment — Aura Enchant artifact Enchanted artifact has "At the beginning of your upkeep, sacrifice this artifact unless you pay its mana cost."
Cruel Entertainment 6BSorcery Choose target player and another target player. The first player controls the second player during the second player's next turn, and the second player controls the first player during the first player's next turn.
Obosh, the Preypiercer 3B/RB/RLegendary Creature — Hellion Horror Companion — Your starting deck contains only cards with odd mana values and land cards. (If this card is your chosen companion, you may put it into your hand from outside the game for {3} as a sorcery.) If a source you control with an odd mana value would deal damage to a permanent or player, it deals double that damage to that permanent or player instead. 3/5
Tainted Monkey 1BCreature — Monkey {T}: Choose a word. Target player mills a card. If a card with the chosen word in its text box was milled this way, they lose 3 life. 1/1
Gale's Redirection 3UUInstant Exile target spell, then roll a d20 and add that spell's mana value. 1—14 | You may cast the exiled card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast that spell. 15+ | You may cast the exiled card without paying its mana cost for as long as it remains exiled.
Shimmering Mirage 1UInstant Target land becomes the basic land type of your choice until end of turn. Draw a card.
Tyrannical Pitlord 4BBCreature — Demon Flying, trample As Tyrannical Pitlord enters the battlefield, choose another creature you control. The chosen creature gets +3/+3 and has flying. When Tyrannical Pitlord leaves the battlefield, sacrifice the chosen creature. 6/6
Perish the Thought 2BSorcery Target opponent reveals their hand. You choose a card from it. That player shuffles that card into their library.
Page 122