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
Ob Nixilis's Cruelty 2BInstant Target creature gets -5/-5 until end of turn. If that creature would die this turn, exile it instead.
Zar Ojanen, Scion of Efrava 3GWLegendary Creature — Cat Warrior Domain — Whenever Zar Ojanen, Scion of Efrava becomes tapped, put a +1/+1 counter on each creature you control with toughness less than the number of basic land types among lands you control. 4/4
Akki Raider 1RCreature — Goblin Warrior Whenever a land is put into a graveyard from the battlefield, Akki Raider gets +1/+0 until end of turn. 2/1
Oaken Siren 1UArtifact Creature — Siren Pirate Flying, vigilance {T}: Add {U}. Spend this mana only to cast an artifact spell or activate an ability of an artifact source. 1/2
Dazzling Beauty 2WInstant Cast this spell only during the declare blockers step. Target unblocked attacking creature becomes blocked. (This spell works on creatures that can't be blocked.) Draw a card at the beginning of the next turn's upkeep.
Devastating Mastery 2WWWWSorcery You may pay {2}{W}{W} rather than pay this spell's mana cost. If the {2}{W}{W} cost was paid, an opponent chooses up to two nonland permanents they control and returns them to their owner's hand. Destroy all nonland permanents.
A-Zar Ojanen, Scion of Efrava 3GWLegendary Creature — Cat Warrior Domain — Whenever Zar Ojanen, Scion of Efrava enters the battlefield or becomes tapped, put a +1/+1 counter on each creature you control with toughness less than the number of basic land types among lands you control. 4/4
Whiteout 1GInstant All creatures lose flying until end of turn. Sacrifice a snow land: Return Whiteout from your graveyard to your hand.
Decoy Gambit 2UInstant For each opponent, choose up to one target creature that player controls, then return that creature to its owner's hand unless its controller has you draw a card.
Ghastly Mimicry Enchantment — Aura Enchant creature At the beginning of your upkeep, create a token that's a copy of enchanted creature, except it's a Spirit in addition to its other types. If Ghastly Mimicry would be put into a graveyard from anywhere, exile it instead.
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