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
Tail Swipe GInstant Choose target creature you control and target creature you don't control. If you cast this spell during your main phase, the creature you control gets +1/+1 until end of turn. Then those creatures fight each other. (Each deals damage equal to its power to the other.)
Aethersquall Ancient 5UUCreature — Leviathan Flying At the beginning of your upkeep, you get {E}{E}{E} (three energy counters). Pay {E}{E}{E}{E}{E}{E}{E}{E}: Return all other creatures to their owners' hands. Activate only as a sorcery. 6/6
Coffin Puppets 3BBCreature — Zombie Sacrifice two lands: Return Coffin Puppets from your graveyard to the battlefield. Activate only during your upkeep and only if you control a Swamp. 3/3
Academic Probation 1WSorcery — Lesson Choose one — • Choose a nonland card name. Opponents can't cast spells with the chosen name until your next turn. • Choose target nonland permanent. Until your next turn, it can't attack or block, and its activated abilities can't be activated.
Auger Spree 1BRInstant Target creature gets +4/-4 until end of turn.
Bedeck B/RB/RInstant Target creature gets +3/-3 until end of turn.
Flowstone Infusion RInstant Target creature gets +2/-2 until end of turn.
Lash of Malice BInstant Target creature gets +2/-2 until end of turn.
Spatial Contortion 1CInstant ({C} represents colorless mana.) Target creature gets +3/-3 until end of turn.
Decisions, Decisions 3USorcery Reveal the top three cards of your library, then choose a consonant. (Y counts.) Put each card that has the chosen letter in the first word of its name from among them into your hand and the rest on the bottom of your library in any order.
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