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
Elfhame Sanctuary 1GEnchantment At the beginning of your upkeep, you may search your library for a basic land card, reveal that card, put it into your hand, then shuffle. If you do, you skip your draw step this turn.
Geth, Lord of the Vault 4BBLegendary Creature — Phyrexian Zombie Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.) {X}{B}: Put target artifact or creature card with mana value X from an opponent's graveyard onto the battlefield under your control tapped. Then that player mills X cards. 5/5
Royal Decree 2WWEnchantment Cumulative upkeep {W} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) Whenever a Swamp, Mountain, black permanent, or red permanent becomes tapped, Royal Decree deals 1 damage to that permanent's controller.
Kotori, Pilot Prodigy 1WULegendary Creature — Moonfolk Pilot Vehicles you control have crew 2. At the beginning of combat on your turn, target artifact creature you control gains lifelink and vigilance until end of turn. 2/4
Mind Unbound 4UUEnchantment At the beginning of your upkeep, put a lore counter on Mind Unbound, then draw a card for each lore counter on Mind Unbound.
Vector Asp 1Artifact Creature — Phyrexian Snake {B}: Vector Asp gains infect until end of turn. (It deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) 1/1
Vedalken Infuser 3UCreature — Vedalken Wizard At the beginning of your upkeep, you may put a charge counter on target artifact. 1/4
Edge of Autumn 1GSorcery If you control four or fewer lands, search your library for a basic land card, put it onto the battlefield tapped, then shuffle. Cycling—Sacrifice a land. (Sacrifice a land, Discard this card: Draw a card.)
Day's Undoing 2USorcery Each player shuffles their hand and graveyard into their library, then draws seven cards. If it's your turn, end the turn. (Exile all spells and abilities from the stack, including this card. Discard down to your maximum hand size. Damage wears off, and "this turn" and "until end of turn" effects end.)
Impact Resonance 1RInstant Impact Resonance deals X damage divided as you choose among any number of target creatures, where X is the greatest amount of damage dealt by a source to a permanent or player this turn.
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