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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
Sweeping Cleave 1RInstant — Adventure Target creature you control gains double strike until end of turn. (Then exile this card. You may cast the artifact later from exile.)
Mirri's Guile GEnchantment At the beginning of your upkeep, you may look at the top three cards of your library, then put them back in any order.
Darkwatch Elves 2GCreature — Elf Protection from black Cycling {2} ({2}, Discard this card: Draw a card.) 2/2
Summer Bloom 1GSorcery You may play up to three additional lands this turn.
Cavern Thoctar 5GCreature — Beast {1}{R}: Cavern Thoctar gets +1/+0 until end of turn. 5/5
Kranioceros 4RCreature — Beast {1}{W}: Kranioceros gets +0/+3 until end of turn. 5/2
Ridgeline Rager 2RCreature — Beast {R}: Ridgeline Rager gets +1/+0 until end of turn. 1/2
Crawling Infestation 2GEnchantment At the beginning of your upkeep, you may mill two cards. (You may put the top two cards of your library into your graveyard.) Whenever one or more creature cards are put into your graveyard from anywhere during your turn, create a 1/1 green Insect creature token. This ability triggers only once each turn.
Rod of Spanking 1Artifact {2}, {T}: Rod of Spanking deals 1 damage to target player. Then untap Rod of Spanking unless that player says "Thank you, sir. May I have another?"
Tergrid's Shadow 3BBInstant Each player sacrifices two creatures. Foretell {2}{B}{B} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)
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