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
Anointed Peacekeeper 2WCreature — Human Cleric Vigilance As Anointed Peacekeeper enters the battlefield, look at an opponent's hand, then choose any card name. Spells your opponents cast with the chosen name cost {2} more to cast. Activated abilities of sources with the chosen name cost {2} more to activate unless they're mana abilities. 3/3
Tideshaper Mystic UCreature — Merfolk Wizard {T}: Target land becomes the basic land type of your choice until end of turn. Activate only during your turn. 1/1
Topdeck the Halls 3RWEnchantment Decorated cards in your hand have miracle {S}. (Decorated cards include premiums, promos, and cards with alternate frames or art.) At the beginning of your upkeep, if you control twelve or more decorated permanents, you win the game.
Sisay, Weatherlight Captain 2WLegendary Creature — Human Soldier Sisay, Weatherlight Captain gets +1/+1 for each color among other legendary permanents you control. {W}{U}{B}{R}{G}: Search your library for a legendary permanent card with mana value less than Sisay's power, put that card onto the battlefield, then shuffle. 2/2
Alliance of Arms WSorcery Join forces — Starting with you, each player may pay any amount of mana. Each player creates X 1/1 white Soldier creature tokens, where X is the total amount of mana paid this way.
Guildpact Paragon Artifact Creature — Construct Whenever you cast a spell that's exactly two colors, look at the top six cards of your library. You may reveal a card that's exactly two colors from among them and put it into your hand. Put the rest on the bottom of your library in a random order. 5/5
Bottled Cloister 4Artifact At the beginning of each opponent's upkeep, exile all cards from your hand face down. At the beginning of your upkeep, return all cards you own exiled with Bottled Cloister to your hand, then draw a card.
Captive Audience 5BREnchantment Captive Audience enters the battlefield under the control of an opponent of your choice. At the beginning of your upkeep, choose one that hasn't been chosen — • Your life total becomes 4. • Discard your hand. • Each opponent creates five 2/2 black Zombie creature tokens.
Thought-String Analyst UBCreature — Human Wizard At the beginning of your upkeep, exile the top card of target opponent's library face down. You lose life equal to its mana value. You may look at and play that card for as long as it remains exiled, and mana of any type can be spent to cast that spell. 2/2
Duel for Dominance 1GInstant Coven — Choose target creature you control and target creature you don't control. If you control three or more creatures with different powers, put a +1/+1 counter on the chosen creature you control. Then the chosen creatures fight each other. (They each deal damage equal to their power to the other.)
Page 130