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
Pooling Venom 1BEnchantment — Aura Enchant land Whenever enchanted land becomes tapped, its controller loses 2 life. {3}{B}: Destroy enchanted land.
The Grand Calcutron WULegendary Artifact The Grand Calcutron can be your commander. When The Grand Calcutron enters the battlefield, each player's hand becomes a program (an ordered row of revealed cards). Players can only play the first card of their program. If a card would be put into a player's hand from anywhere, that player reveals it and places it anywhere within their program instead. At the beginning of each player's end step, if that player's program has fewer than five cards, they draw cards equal to the difference.
Grimlock, Ferocious King Legendary Artifact Creature — Dinosaur Trample {2}, Convert a Transformers toy you own to its other mode: Grimlock, Ferocious King becomes Grimlock, Dinobot Leader. 8/8
Untaidake, the Cloud Keeper Legendary Land Untaidake, the Cloud Keeper enters the battlefield tapped. {T}, Pay 2 life: Add {C}{C}. Spend this mana only to cast legendary spells.
Awe Strike WInstant The next time target creature would deal damage this turn, prevent that damage. You gain life equal to the damage prevented this way.
Heap Gate Land — Gate {T}: Add {C}. {1}, {T}: Add one mana of any color. {1}, {T}, Tap an untapped Gate you control: Create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")
Remodel 2GInstant If you control two or more green permanents that share an artist, you may cast this spell without paying its mana cost. Exile target artifact.
Goblin Archaeologist 1RCreature — Goblin Artificer {R}, {T}: Flip a coin. If you win the flip, destroy target artifact and untap Goblin Archaeologist. If you lose the flip, sacrifice Goblin Archaeologist. 1/2
Gilded Goose GCreature — Bird Flying When Gilded Goose enters the battlefield, create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this artifact: You gain 3 life.") {1}{G}, {T}: Create a Food token. {T}, Sacrifice a Food: Add one mana of any color. 0/2
Nashi, Moon Sage's Scion 1BBLegendary Creature — Rat Ninja Ninjutsu {3}{B} ({3}{B}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.) Whenever Nashi, Moon Sage's Scion deals combat damage to a player, exile the top card of each player's library. Until end of turn, you may play one of those cards. If you cast a spell this way, pay life equal to its mana value rather than paying its mana cost. 3/2
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