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
Umori, the Collector 2B/GB/GLegendary Creature — Ooze Companion — Each nonland card in your starting deck shares a card type. (If this card is your chosen companion, you may put it into your hand from outside the game for {3} as a sorcery.) As Umori, the Collector enters the battlefield, choose a card type. Spells you cast of the chosen type cost {1} less to cast. 4/5
Electrolyze 1URInstant Electrolyze deals 2 damage divided as you choose among one or two targets. Draw a card.
Stone-Cold Basilisk 4GCreature — Basilisk Whenever Stone-Cold Basilisk blocks or becomes blocked by a creature with fewer letters in its name, destroy that creature at end of combat. (Punctuation and spaces aren't letters.) Whenever an opponent reads Stone-Cold Basilisk, that player is turned to stone until end of turn. Stoned players can't attack, block, cast spells, or activate abilities. 2.5/5
Intervention Pact 0Instant The next time a source of your choice would deal damage to you this turn, prevent that damage. You gain life equal to the damage prevented this way. At the beginning of your next upkeep, pay {1}{W}{W}. If you don't, you lose the game.
Ignition Team 5RRCreature — Goblin Warrior Ignition Team enters the battlefield with X +1/+1 counters on it, where X is the number of tapped lands on the battlefield. {2}{R}, Remove a +1/+1 counter from Ignition Team: Target land becomes a 4/4 red Elemental creature until end of turn. It's still a land. 0/0
Solitary Sanctuary 2WEnchantment When Solitary Sanctuary enters the battlefield, tap target creature an opponent controls and put a stun counter on it. (If a permanent with a stun counter would become untapped, remove one from it instead.) Whenever you tap an untapped creature an opponent controls, put a +1/+1 counter on target creature you control.
Amaranthine Wall 4Artifact Creature — Wall Defender {2}: Amaranthine Wall gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.) 0/6
Oyaminartok, Polar Werebear 2GGLegendary Creature — Giant Bear Oyaminartok, Polar Werebear has hexproof if it hasn't dealt damage yet. Whenever Oyaminartok deals combat damage to a player, create a Food token. {U}, Sacrifice a Food: Draft a card from Oyaminartok's spellbook. When you do, add {U}{U}{U}. Spend this mana only to cast blue creature spells. 4/5
Manor Guardian 2BCreature — Demon When Manor Guardian dies, each player seeks a nonland card with mana value 2 or less. 4/3
Hedron Matrix 4Artifact — Equipment Equipped creature gets +X/+X, where X is its mana value. Equip {4}
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