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
Sinew Dancer WCreature — Phyrexian Soldier {3}{W}, {T}: Tap target creature. Corrupted — {W}, {T}: Tap target creature. Activate only if an opponent has three or more poison counters. 1/1
Galvanic Giant 3UCreature — Giant Wizard Whenever you cast a spell with mana value 5 or greater, tap target creature an opponent controls and put a stun counter on it. 3/3
Extirpate BInstant Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.) Choose target card in a graveyard other than a basic land card. Search its owner's graveyard, hand, and library for all cards with the same name as that card and exile them. Then that player shuffles.
Plagiarize 3UInstant Until end of turn, if target player would draw a card, instead that player skips that draw and you draw a card.
Cliffside Market Plane — Mercadia When you planeswalk to Cliffside Market or at the beginning of your upkeep, you may exchange life totals with target player. Whenever chaos ensues, exchange control of two target permanents that share a card type.
Thallid Devourer 1GGCreature — Fungus At the beginning of your upkeep, put a spore counter on Thallid Devourer. Remove three spore counters from Thallid Devourer: Create a 1/1 green Saproling creature token. Sacrifice a Saproling: Thallid Devourer gets +1/+2 until end of turn. 2/2
Gigapede 3GGCreature — Insect Shroud (This creature can't be the target of spells or abilities.) At the beginning of your upkeep, if Gigapede is in your graveyard, you may discard a card. If you do, return Gigapede to your hand. 6/1
Kinnan, Bonder Prodigy GULegendary Creature — Human Druid Whenever you tap a nonland permanent for mana, add one mana of any type that permanent produced. {5}{G}{U}: Look at the top five cards of your library. You may put a non-Human creature card from among them onto the battlefield. Put the rest on the bottom of your library in a random order. 2/2
Skull Collector 1BBCreature — Ogre Warrior At the beginning of your upkeep, return a black creature you control to its owner's hand. {1}{B}: Regenerate Skull Collector. 3/3
The Master, Gallifrey's End 2BRLegendary Creature — Time Lord Rogue Make Them Pay — Whenever a nontoken artifact creature you control dies, you may exile it. If you do, choose an opponent with the most life among your opponents. That player faces a villainous choice — They lose 4 life, or you create a token that's a copy of that card. 4/3
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