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
Scholar of the Lost Trove 5UUCreature — Sphinx Flying When Scholar of the Lost Trove enters the battlefield, you may cast target instant, sorcery, or artifact card from your graveyard without paying its mana cost. If an instant or sorcery spell cast this way would be put into your graveyard, exile it instead. 5/5
Fangorn, Tree Shepherd 4GGGLegendary Creature — Treefolk Treefolk you control have vigilance. Whenever one or more Treefolk you control attack, add twice that much {G}. You don't lose unspent green mana as steps and phases end. 4/10
Arcane Endeavor 5UUSorcery Roll two d8 and choose one result. Draw cards equal to that result. Then you may cast an instant or sorcery spell with mana value less than or equal to the other result from your hand without paying its mana cost.
Darksteel Ingot 3Artifact Indestructible (Effects that say "destroy" don't destroy this artifact.) {T}: Add one mana of any color.
Void Winnower 9Creature — Eldrazi Your opponents can't cast spells with even mana values. (Zero is even.) Your opponents can't block with creatures with even mana values. 11/9
Opaline Unicorn 3Artifact Creature — Unicorn {T}: Add one mana of any color. 1/2
Celestial Prism 3Artifact {2}, {T}: Add one mana of any color.
Mana Cylix 1Artifact {1}, {T}: Add one mana of any color.
Manalith 3Artifact {T}: Add one mana of any color.
Seasonal Ritual GSorcery — Adventure Add one mana of any color. (Then exile this card. You may cast the creature later from exile.)
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