Card Codex

M:tG card similarity search

17 May 2024: Card library updated.

Horizon Stone

5 · Artifact

If you would lose unspent mana, that mana becomes colorless instead.

Similar cards

Color identity:
NameManaTypeText
Master of Predicaments 3UUCreature — Sphinx Flying Whenever Master of Predicaments deals combat damage to a player, choose a card in your hand. That player guesses whether the card's mana value is greater than 4. If the player guessed wrong, you may cast the card without paying its mana cost. 4/4
Embermaw Hellion 3RRCreature — Hellion Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.) If another red source you control would deal damage to a permanent or player, it deals that much damage plus 1 to that permanent or player instead. 4/5
Cultivator Drone 2UCreature — Eldrazi Drone Devoid (This card has no color.) {T}: Add {C}. Spend this mana only to cast a colorless spell, activate an ability of a colorless permanent, or pay a cost that contains {C}. ({C} represents colorless mana.) 2/3
Trace of Abundance R/WGEnchantment — Aura Enchant land Enchanted land has shroud. (It can't be the target of spells or abilities.) Whenever enchanted land is tapped for mana, its controller adds an additional one mana of any color.
Hargilde, Kindly Runechanter 2WULegendary Creature — Human {T}: Add {C}{C}. Spend this mana only to cast artifact spells or activate abilities of artifacts. Friends forever (You can have two commanders if both have friends forever.) 2/3
Amulet of Quoz 6Artifact Remove Amulet of Quoz from your deck before playing if you're not playing for ante. {T}, Sacrifice Amulet of Quoz: Target opponent may ante the top card of their library. If they don't, you flip a coin. If you win the flip, that player loses the game. If you lose the flip, you lose the game. Activate only during your upkeep.
Zendikar Resurgent 5GGEnchantment Whenever you tap a land for mana, add one mana of any type that land produced. (The types of mana are white, blue, black, red, green, and colorless.) Whenever you cast a creature spell, draw a card.
Foreboding Fruit 2BSorcery Target player draws two cards and loses 2 life. Adamant — If at least three black mana was spent to cast this spell, create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this artifact: You gain 3 life.")
Rashmi, Eternities Crafter 2GULegendary Creature — Elf Druid Whenever you cast your first spell each turn, reveal the top card of your library. You may cast it without paying its mana cost if it's a spell with lesser mana value. If you don't cast it, put it into your hand. 2/3
Chromatic Lantern 3Artifact Lands you control have "{T}: Add one mana of any color." {T}: Add one mana of any color.
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