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
Opposition 2UUEnchantment Tap an untapped creature you control: Tap target artifact, creature, or land.
Pippin, Guard of the Citadel WULegendary Creature — Halfling Soldier Vigilance, ward {1} {T}: Another target creature you control gains protection from the card type of your choice until end of turn. (It can't be blocked, targeted, dealt damage, enchanted, or equipped by anything of that type.) 2/2
Invigorate 2GInstant If you control a Forest, rather than pay this spell's mana cost, you may have an opponent gain 3 life. Target creature gets +4/+4 until end of turn.
Harsh Scrutiny BSorcery Target opponent reveals their hand. You choose a creature card from it. That player discards that card. Scry 1.
Piru, the Volatile 2RRWWBBLegendary Creature — Elder Dragon Flying, lifelink At the beginning of your upkeep, sacrifice Piru, the Volatile unless you pay {R}{W}{B}. When Piru dies, it deals 7 damage to each nonlegendary creature. 7/7
Kindred Discovery 3UUEnchantment As Kindred Discovery enters the battlefield, choose a creature type. Whenever a creature you control of the chosen type enters the battlefield or attacks, draw a card.
Laughing Jasper Flint 1BRLegendary Creature — Lizard Rogue Creatures you control but don't own are Mercenaries in addition to their other types. At the beginning of your upkeep, exile the top X cards of target opponent's library, where X is the number of outlaws you control. Until end of turn, you may cast spells from among those cards, and mana of any type can be spent to cast those spells. 4/3
Tidal Warrior UCreature — Merfolk Warrior {T}: Target land becomes an Island until end of turn. 1/1
Hermit of the Natterknolls 2GCreature — Human Werewolf Whenever an opponent casts a spell during your turn, draw a card. At the beginning of each upkeep, if no spells were cast last turn, transform Hermit of the Natterknolls. 2/3
Brink of Madness 2BBEnchantment At the beginning of your upkeep, if you have no cards in hand, sacrifice Brink of Madness and target opponent discards their hand.
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