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
Opposition Agent 2BCreature — Human Rogue Flash You control your opponents while they're searching their libraries. While an opponent is searching their library, they exile each card they find. You may play those cards for as long as they remain exiled, and you may spend mana as though it were mana of any color to cast them. 3/2
Thornscape Master 2GGCreature — Human Wizard {R}{R}, {T}: Thornscape Master deals 2 damage to target creature. {W}{W}, {T}: Target creature gains protection from the color of your choice until end of turn. 2/2
Brainstealer Dragon 5BBCreature — Dragon Horror Flying At the beginning of your end step, exile the top card of each opponent's library. You may play those cards for as long as they remain exiled. If you cast a spell this way, you may spend mana as though it were mana of any color to cast it. Whenever a nonland permanent an opponent owns enters the battlefield under your control, they lose life equal to its mana value. 6/6
Morselhoarder 4R/GR/GCreature — Elemental Morselhoarder enters the battlefield with two -1/-1 counters on it. Remove a -1/-1 counter from Morselhoarder: Add one mana of any color. 6/4
Noxious Vapors 1BBSorcery Each player reveals their hand, chooses one card of each color from it, then discards all other nonland cards.
Void Mirror 2Artifact Whenever a player casts a spell, if no colored mana was spent to cast it, counter that spell.
Rahilda, Feral Outlaw Legendary Creature — Werewolf Double strike When Rahilda, Feral Outlaw deals combat damage to a player, exile a nonland card from their library at random. During any turn you attacked with a Wolf or Werewolf, you may cast that card and you may spend mana as though it were mana of any color to cast that spell. Nightbound 2/2
Angelic Intervention 1WInstant Target creature or planeswalker you control gains protection from colorless or from the color of your choice until end of turn. If it's a creature, put a +1/+1 counter on it. (It can't be blocked, targeted, dealt damage, enchanted, or equipped by anything with that quality.)
Woodland Wanderer 3GCreature — Elemental Vigilance, trample Converge — Woodland Wanderer enters the battlefield with a +1/+1 counter on it for each color of mana spent to cast it. 2/2
Indigo Faerie 1UCreature — Faerie Wizard Flying {U}: Target permanent becomes blue in addition to its other colors until end of turn. 1/1
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