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
Snapping Creeper 2GCreature — Plant Landfall — Whenever a land enters the battlefield under your control, Snapping Creeper gains vigilance until end of turn. 2/3
Karn's Sylex 3Legendary Artifact Karn's Sylex enters the battlefield tapped. Players can't pay life to cast spells or to activate abilities that aren't mana abilities. {X}, {T}, Exile Karn's Sylex: Destroy each nonland permanent with mana value X or less. Activate only as a sorcery.
Scarwood Hag 1GCreature — Hag {G}{G}{G}{G}, {T}: Target creature gains forestwalk until end of turn. (It can't be blocked as long as defending player controls a Forest.) {T}: Target creature loses forestwalk until end of turn. 1/1
Genesis 4GCreature — Incarnation At the beginning of your upkeep, if Genesis is in your graveyard, you may pay {2}{G}. If you do, return target creature card from your graveyard to your hand. 4/4
Dispersal Shield 1UInstant Counter target spell if its mana value is less than or equal to the highest mana value among permanents you control.
Indoraptor, the Perfect Hybrid 1B/GRLegendary Creature — Dinosaur Mutant Bloodthirst X (This creature enters the battlefield with X +1/+1 counters on it, where X is the damage dealt to your opponents this turn.) Menace Enrage — Whenever Indoraptor, the Perfect Hybrid is dealt damage, choose an opponent at random. Indoraptor deals damage equal to its power to that player unless they sacrifice a nontoken creature. 3/1
Mana Crypt 0Artifact At the beginning of your upkeep, flip a coin. If you lose the flip, Mana Crypt deals 3 damage to you. {T}: Add {C}{C}.
Braids, Arisen Nightmare 1BBLegendary Creature — Nightmare At the beginning of your end step, you may sacrifice an artifact, creature, enchantment, land, or planeswalker. If you do, each opponent may sacrifice a permanent that shares a card type with it. For each opponent who doesn't, that player loses 2 life and you draw a card. 3/3
Corporeal Projection URSorcery Target creature you control gains myriad until end of turn. (Whenever it attacks, for each opponent other than defending player, you may create a token that's a copy of that creature that's tapped and attacking that player or a planeswalker they control. Exile the tokens at end of combat.) Overload {3}{U}{U}{R}{R} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")
Cerise, Slayer of Fear 3WWLegendary Creature — Human Cleric Knight First strike, lifelink At the beginning of your postcombat main phase, if you gained life this turn, seek a card with the highest mana value among cards in your library with mana value less than or equal to the amount of life you gained this turn. 5/5
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