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
Unnatural Aggression 2GInstant Devoid (This card has no color.) Target creature you control fights target creature an opponent controls. If the creature an opponent controls would die this turn, exile it instead.
Fetid Horror 3BCreature — Shade Horror {B}: Fetid Horror gets +1/+1 until end of turn. 1/2
Loyal Warhound 1WCreature — Dog Vigilance When Loyal Warhound enters the battlefield, if an opponent controls more lands than you, search your library for a basic Plains card, put it onto the battlefield tapped, then shuffle. 3/1
Providence 5WWSorcery You may reveal this card from your opening hand. If you do, at the beginning of the first upkeep, your life total becomes 26. Your life total becomes 26.
Lumbering Falls Land Lumbering Falls enters the battlefield tapped. {T}: Add {G} or {U}. {2}{G}{U}: Lumbering Falls becomes a 3/3 green and blue Elemental creature with hexproof until end of turn. It's still a land.
Voice of Reason 3WCreature — Angel Flying, protection from blue 2/2
A-Tatyova, Steward of Tides GGULegendary Creature — Merfolk Druid Land creatures you control have flying. Whenever a land enters the battlefield under your control, if you control seven or more lands, up to one target land you control becomes a 4/4 Elemental creature with haste. It's still a land. 4/4
Tatyova, Steward of Tides GGULegendary Creature — Merfolk Druid Land creatures you control have flying. Whenever a land enters the battlefield under your control, if you control seven or more lands, up to one target land you control becomes a 3/3 Elemental creature with haste. It's still a land. 3/3
Skyrider Patrol 2GUCreature — Elf Scout Flying At the beginning of combat on your turn, you may pay {G}{U}. When you do, put a +1/+1 counter on another target creature you control, and that creature gains flying until end of turn. 2/3
Dragon Mask 3Artifact {3}, {T}: Target creature you control gets +2/+2 until end of turn. Return it to its owner's hand at the beginning of the next end step. (Return it only if it's on the battlefield.)
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