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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
Zombie Trailblazer BBBCreature — Zombie Scout Tap an untapped Zombie you control: Target land becomes a Swamp until end of turn. Tap an untapped Zombie you control: Target creature gains swampwalk until end of turn. (It can't be blocked as long as defending player controls a Swamp.) 2/2
Oath of Druids 1GEnchantment At the beginning of each player's upkeep, that player chooses target player who controls more creatures than they do and is their opponent. The first player may reveal cards from the top of their library until they reveal a creature card. If the first player does, that player puts that card onto the battlefield and all other cards revealed this way into their graveyard.
Jukai Liberator 2GCreature — Snake Ninja Ninjutsu {1}{G} Whenever Jukai Liberator deals combat damage to a player, choose land or nonland. Seek a permanent card of the chosen type. 3/3
Wand of Ith 4Artifact {3}, {T}: Target player reveals a card at random from their hand. If it's a land card, that player discards it unless they pay 1 life. If it isn't a land card, the player discards it unless they pay life equal to its mana value. Activate only during your turn.
Breaker of Creation 6CCCreature — Eldrazi When you cast this spell, you gain 1 life for each colorless permanent you control. Hexproof from each color Annihilator 2 (Whenever this creature attacks, defending player sacrifices two permanents.) 8/4
The Horus Heresy 3UBREnchantment — Saga (As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I — For each opponent, gain control of up to one target nonlegendary creature that player controls for as long as The Horus Heresy remains on the battlefield. II — Draw a card for each creature you control but don't own. III — Starting with you, each player chooses a creature. Destroy each creature chosen this way.
Ineffable Blessing 1GEnchantment As Ineffable Blessing enters the battlefield, choose a number. Whenever a creature with exactly the chosen number of words in its name enters the battlefield under your control, draw a card. (Hyphenated words are one word.)
Coalition Flag WEnchantment — Aura Enchant creature you control Enchanted creature is a Flagbearer. While an opponent is choosing targets as part of casting a spell they control or activating an ability they control, that player must choose at least one Flagbearer on the battlefield if able.
Orcish Mine 1RREnchantment — Aura Enchant land Orcish Mine enters the battlefield with three ore counters on it. At the beginning of your upkeep or whenever enchanted land becomes tapped, remove an ore counter from Orcish Mine. When the last ore counter is removed from Orcish Mine, destroy enchanted land and Orcish Mine deals 2 damage to that land's controller.
Sin Prodder 2RCreature — Devil Menace At the beginning of your upkeep, reveal the top card of your library. Any opponent may have you put that card into your graveyard. If a player does, Sin Prodder deals damage to that player equal to that card's mana value. Otherwise, put that card into your hand. 3/2
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