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
Leyline Immersion 3GEnchantment — Aura Enchant legendary creature Enchanted creature has ward {2} and "{T}: Add five mana in any combination of colors. Spend this mana only to cast spells."
Beseech the Mirror 1BBBSorcery Bargain (You may sacrifice an artifact, enchantment, or token as you cast this spell.) Search your library for a card, exile it face down, then shuffle. If this spell was bargained, you may cast the exiled card without paying its mana cost if that spell's mana value is 4 or less. Put the exiled card into your hand if it wasn't cast this way.
Vesuvan Mist 1UInstant Kicker {1}{B} Return target nontoken, nonland permanent to its owner's hand. If this spell was kicked, conjure a duplicate of that card into your hand. It perpetually gains "You may spend mana as though it were mana of any color to cast this spell."
Zhur-Taa Ancient 3RGCreature — Beast Whenever a player taps a land for mana, that player adds one mana of any type that land produced. 7/5
A-Security Rhox 2RGCreature — Rhino Warrior You may pay {R}{G} rather than pay this spell's mana cost. Spend only mana produced by Treasures to cast it this way. 5/5
Security Rhox 2RGCreature — Rhino Warrior You may pay {R}{G} rather than pay this spell's mana cost. Spend only mana produced by Treasures to cast it this way. 5/4
Oasis Ritualist 3GCreature — Naga Druid {T}: Add one mana of any color. {T}, Exert Oasis Ritualist: Add two mana of any one color. (An exerted creature won't untap during your next untap step.) 2/4
Carpet of Flowers GEnchantment At the beginning of each of your main phases, if you haven't added mana with this ability this turn, you may add X mana of any one color, where X is the number of Islands target opponent controls.
Punishment XBGSorcery Destroy each artifact, creature, and enchantment with mana value X.
Heartbeat of Spring 2GEnchantment Whenever a player taps a land for mana, that player adds one mana of any type that land produced.
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