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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
Crawling Sensation 2GEnchantment At the beginning of your upkeep, you may mill two cards. Whenever one or more land cards are put into your graveyard from anywhere for the first time each turn, create a 1/1 green Insect creature token.
Victory's Envoy 3WWCreature — Human Cleric At the beginning of your upkeep, put a +1/+1 counter on each other creature you control. 3/3
Ringsight 1UBSorcery The Ring tempts you. Search your library for a card that shares a color with a legendary creature you control, reveal it, put it into your hand, then shuffle.
Riptide UInstant Tap all blue creatures.
Solitary Hunter 3GCreature — Human Warrior Werewolf At the beginning of each upkeep, if no spells were cast last turn, transform Solitary Hunter. 3/4
Tormented Pariah 3RCreature — Human Warrior Werewolf At the beginning of each upkeep, if no spells were cast last turn, transform Tormented Pariah. 3/2
Slow Motion 2UEnchantment — Aura Enchant creature At the beginning of the upkeep of enchanted creature's controller, that player sacrifices that creature unless they pay {2}. When Slow Motion is put into a graveyard from the battlefield, return Slow Motion to its owner's hand.
Necrogoyf 3BBCreature — Lhurgoyf Necrogoyf's power is equal to the number of creature cards in all graveyards. At the beginning of each player's upkeep, that player discards a card. Madness {1}{B}{B} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.) */4
Divest BSorcery Target player reveals their hand. You choose an artifact or creature card from it. That player discards that card.
Jade Orb of Dragonkind 2GArtifact {T}: Add {G}. When you spend this mana to cast a Dragon creature spell, it enters the battlefield with an additional +1/+1 counter on it and gains hexproof until your next turn. (It can't be the target of spells or abilities your opponents control.)
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