Card Codex

M:tG card similarity search

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
Lavaball Trap 6RRInstant — Trap If an opponent had two or more lands enter the battlefield under their control this turn, you may pay {3}{R}{R} rather than pay this spell's mana cost. Destroy two target lands. Lavaball Trap deals 4 damage to each creature.
Biomancer's Familiar GUCreature — Mutant Activated abilities of creatures you control cost {2} less to activate. This effect can't reduce the mana in that cost to less than one mana. {T}: The next time target creature adapts this turn, it adapts as though it had no +1/+1 counters on it. 2/2
Porcelain Zealot 3WCreature — Phyrexian Soldier At the beginning of combat on your turn, target creature you control gets +1/+1 until end of turn. If that creature has toxic, instead it gets +2/+2 until end of turn. 2/3
Kessig Naturalist RGCreature — Human Werewolf Whenever Kessig Naturalist attacks, add {R} or {G}. Until end of turn, you don't lose this mana as steps and phases end. Daybound (If a player casts no spells during their own turn, it becomes night next turn.) 2/2
Blinding Light 2WSorcery Tap all nonwhite creatures.
Makindi Ox 4WCreature — Ox Landfall — Whenever a land enters the battlefield under your control, tap target creature an opponent controls. 4/4
Draco 16Artifact Creature — Dragon Domain — This spell costs {2} less to cast for each basic land type among lands you control. Flying Domain — At the beginning of your upkeep, sacrifice Draco unless you pay {10}. This cost is reduced by {2} for each basic land type among lands you control. 9/9
Mind Warp X3BSorcery Look at target player's hand and choose X cards from it. That player discards those cards.
Killer Cosplay GArtifact — Equipment Whenever Killer Cosplay becomes attached to a creature, choose a creature card name with an identical mana cost. That creature becomes a copy of the card with the chosen name until Killer Cosplay becomes unattached from it. Equip {3}
Dark Inquiry 2BSorcery Target opponent reveals their hand. You choose a nonland card from it. That player discards that card.
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