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
Llanowar Behemoth 3GGCreature — Elemental Tap an untapped creature you control: Llanowar Behemoth gets +1/+1 until end of turn. 4/4
Wave of Vitriol 5GGSorcery Each player sacrifices all artifacts, enchantments, and nonbasic lands they control. For each land sacrificed this way, its controller may search their library for a basic land card and put it onto the battlefield tapped. Then each player who searched their library this way shuffles.
Nightsnare 3BSorcery Target opponent reveals their hand. You may choose a nonland card from it. If you do, that player discards that card. If you don't, that player discards two cards.
The Countdown Is at One 3RRSorcery Players play a Magic subgame, starting at 1 life and using their libraries as their decks. For the rest of the main game, if a source would deal damage to a player who didn't win the subgame, it deals double that damage to that player instead.
Shivan Zombie BRCreature — Phyrexian Barbarian Zombie Protection from white 2/2
Tombstone Stairwell 2BBWorld Enchantment Cumulative upkeep {1}{B} (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.) At the beginning of each upkeep, if Tombstone Stairwell is on the battlefield, each player creates a 2/2 black Zombie creature token with haste named Tombspawn for each creature card in their graveyard. At the beginning of each end step or when Tombstone Stairwell leaves the battlefield, destroy all tokens created with Tombstone Stairwell. They can't be regenerated.
Spelldrain Assassin UBRCreature — Vampire Assassin When Spelldrain Assassin enters the battlefield, choose an instant or sorcery card in your hand. It perpetually gains casualty 2. 3/3
Throne of Death BLegendary Artifact At the beginning of your upkeep, mill a card. {2}{B}, {T}, Exile a creature card from your graveyard: Draw a card.
Mob Verdict 2RRSorcery Secret council — Each player secretly votes for another player, then those votes are revealed. For each vote an opponent received, Mob Verdict deals 2 damage to that player and each creature that player controls. For each vote you received, draw a card.
Phyrexian Arena 1BBEnchantment At the beginning of your upkeep, you draw a card and you lose 1 life.
Page 236