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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
Haradrim Spearmaster 2RCreature — Human Warrior Reach At the beginning of combat on your turn, another target creature you control gets +1/+0 until end of turn. 2/3
Defense of the Heart 3GEnchantment At the beginning of your upkeep, if an opponent controls three or more creatures, sacrifice Defense of the Heart, search your library for up to two creature cards, put those cards onto the battlefield, then shuffle.
Aurora Griffin 3WCreature — Griffin Flying {W}: Target permanent becomes white until end of turn. 2/2
Legion's End 1BSorcery Exile target creature an opponent controls with mana value 2 or less and all other creatures that player controls with the same name as that creature. Then that player reveals their hand and exiles all cards with that name from their hand and graveyard.
Septic Rats 1BBCreature — Phyrexian Rat Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) Whenever Septic Rats attacks, if defending player is poisoned, it gets +1/+1 until end of turn. 2/2
Feed the Swarm 1BSorcery Destroy target creature or enchantment an opponent controls. You lose life equal to that permanent's mana value.
Kry Shield 2Artifact {2}, {T}: Prevent all damage that would be dealt this turn by target creature you control. That creature gets +0/+X until end of turn, where X is its mana value.
Sight of the Scalelords 4GEnchantment At the beginning of combat on your turn, creatures you control with toughness 4 or greater get +2/+2 and gain vigilance until end of turn.
Loyal Subordinate 2BCreature — Zombie Menace Lieutenant — At the beginning of combat on your turn, if you control your commander, each opponent loses 3 life. 3/1
Rolling Thunder XRRSorcery Rolling Thunder deals X damage divided as you choose among any number of targets.
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