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
Celestial Convergence 2WWEnchantment Celestial Convergence enters the battlefield with seven omen counters on it. At the beginning of your upkeep, remove an omen counter from Celestial Convergence. If there are no omen counters on Celestial Convergence, the player with the highest life total wins the game. If two or more players are tied for highest life total, the game is a draw.
Necrotic Plague 2BBEnchantment — Aura Enchant creature Enchanted creature has "At the beginning of your upkeep, sacrifice this creature." When enchanted creature dies, its controller chooses target creature one of their opponents controls. Return Necrotic Plague from its owner's graveyard to the battlefield attached to that creature.
Carnelian Orb of Dragonkind 2RArtifact {T}: Add {R}. If that mana is spent on a Dragon creature spell, it gains haste until end of turn.
Palladia-Mors 2RRGGWWLegendary Creature — Elder Dragon Flying, trample At the beginning of your upkeep, sacrifice Palladia-Mors unless you pay {R}{G}{W}. 7/7
Mana Cannons 2REnchantment Whenever you cast a multicolored spell, Mana Cannons deals X damage to any target, where X is the number of colors that spell is.
Omenpath Journey 3GEnchantment When Omenpath Journey enters the battlefield, search your library for up to five land cards that have different names, exile them, then shuffle. At the beginning of your end step, choose a card at random exiled with Omenpath Journey and put it onto the battlefield tapped.
Caught in a Parallel Universe Phenomenon When you encounter Caught in a Parallel Universe, each player chooses a creature controlled by the player to their left. Each player creates a token that's a copy of the creature they chose, except it has menace. (Then planeswalk away from this phenomenon.)
Force of Nature 2GGGGCreature — Elemental Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.) At the beginning of your upkeep, Force of Nature deals 8 damage to you unless you pay {G}{G}{G}{G}. 8/8
Curse of Inertia 2UEnchantment — Aura Curse Enchant player Whenever a player attacks enchanted player with one or more creatures, that attacking player may tap or untap target permanent of their choice.
Troublesome Spirit 2UUCreature — Spirit Flying At the beginning of your end step, tap all lands you control. 3/4
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