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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
Flowstone Giant 2RRCreature — Giant {R}: Flowstone Giant gets +2/-2 until end of turn. 3/3
Wiitigo 3GGGCreature — Yeti Wiitigo enters the battlefield with six +1/+1 counters on it. At the beginning of your upkeep, put a +1/+1 counter on Wiitigo if it has blocked or been blocked since your last upkeep. Otherwise, remove a +1/+1 counter from it. 0/0
Optimus Prime, Autobot Leader Legendary Artifact — Vehicle Living metal (As long as it's your turn, this Vehicle is also a creature.) Trample Whenever you attack, bolster 2. The chosen creature gains trample until end of turn. When that creature deals combat damage to a player this turn, convert Optimus Prime. 6/8
Cemetery Desecrator 4BBCreature — Zombie Menace When Cemetery Desecrator enters the battlefield or dies, exile another card from a graveyard. When you do, choose one — • Remove X counters from target permanent, where X is the mana value of the exiled card. • Target creature an opponent controls gets -X/-X until end of turn, where X is the mana value of the exiled card. 4/4
The Pyramid of Mars Plane — Mars When you planeswalk to The Pyramid of Mars and at beginning of your upkeep, surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.) Whenever chaos ensues, return target creature card from your graveyard to the battlefield.
Proposal WWWWSorcery Allows Richard to propose marriage to Lily. If the proposal is accepted both players win; mix the cards in play, both libraries, and both graveyards as a shared deck.
Drag to the Bottom 2BBSorcery Domain — Each creature gets -X/-X until end of turn, where X is 1 plus the number of basic land types among lands you control.
Undying Evil BInstant Target creature gains undying until end of turn. (When it dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.)
Traverse Eternity 2UUSorcery Draw cards equal to the highest mana value among historic permanents you control. (Artifacts, legendaries, and Sagas are historic.)
Eon Frolicker 2UUCreature — Elemental Otter Flying When Eon Frolicker enters the battlefield, if you cast it, target opponent takes an extra turn after this one. Until your next turn, you and planeswalkers you control gain protection from that player. (You and planeswalkers you control can't be targeted, dealt damage, or enchanted by anything controlled by that player.) 5/5
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