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
Training Grounds UEnchantment 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.
Shisato, Whispering Hunter 3GLegendary Creature — Snake Warrior At the beginning of your upkeep, sacrifice a Snake. Whenever Shisato, Whispering Hunter deals combat damage to a player, that player skips their next untap step. 2/2
Vaevictis Asmadi, the Dire 3BRGLegendary Creature — Elder Dragon Flying Whenever Vaevictis Asmadi, the Dire attacks, for each player, choose target permanent that player controls. Those players sacrifice those permanents. Each player who sacrificed a permanent this way reveals the top card of their library, then puts it onto the battlefield if it's a permanent card. 6/6
Seer's Vision 2UBEnchantment Your opponents play with their hands revealed. Sacrifice Seer's Vision: Look at target player's hand and choose a card from it. That player discards that card. Activate only as a sorcery.
Gaea's Might GInstant Domain — Target creature gets +1/+1 until end of turn for each basic land type among lands you control.
Might of Alara GInstant Domain — Target creature gets +1/+1 until end of turn for each basic land type among lands you control.
Power Armor 4Artifact Domain — {3}, {T}: Target creature gets +1/+1 until end of turn for each basic land type among lands you control.
Mindstorm Crown 3Artifact At the beginning of your upkeep, draw a card if you had no cards in hand at the beginning of this turn. If you had a card in hand, Mindstorm Crown deals 1 damage to you.
Lazotep Convert Creature — Zombie You may have Lazotep Convert enter the battlefield as a copy of any creature card in a graveyard, except it's a 4/4 black Zombie in addition to its other colors and types. 4/4
Mirkwood Trapper 1GUCreature — Elf Scout Whenever a player attacks you, target attacking creature gets -2/-0 until end of turn. Whenever a player attacks, if they aren't attacking you, that player chooses an attacking creature. It gets +2/+0 until end of turn. 1/4
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