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
Jack-in-the-Mox 0Artifact {T}: Roll a six-sided die. This ability has the indicated effect. 1 — Sacrifice Jack-in-the-Mox and you lose 5 life. 2 — Add {W}. 3 — Add {U}. 4 — Add {B}. 5 — Add {R}. 6 — Add {G}.
Hidden Retreat 2WEnchantment Put a card from your hand on top of your library: Prevent all damage that would be dealt by target instant or sorcery spell this turn.
Rocco, Cabaretti Caterer XRGWLegendary Creature — Elf Druid When Rocco, Cabaretti Caterer enters the battlefield, if you cast it, you may search your library for a creature card with mana value X or less, put it onto the battlefield, then shuffle. 3/1
Phantasmal Image 1UCreature — Illusion You may have Phantasmal Image enter the battlefield as a copy of any creature on the battlefield, except it's an Illusion in addition to its other types and it has "When this creature becomes the target of a spell or ability, sacrifice it." 0/0
Pause for Reflection 2GInstant Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Prevent all combat damage that would be dealt this turn.
Nissa, Steward of Elements XGULegendary Planeswalker — Nissa [+2]: Scry 2. [0]: Look at the top card of your library. If it's a land card or a creature card with mana value less than or equal to the number of loyalty counters on Nissa, Steward of Elements, you may put that card onto the battlefield. [−6]: Untap up to two target lands you control. They become 5/5 Elemental creatures with flying and haste until end of turn. They're still lands. Loyalty X
Constant Mists 1GInstant Buyback—Sacrifice a land. (You may sacrifice a land in addition to any other costs as you cast this spell. If you do, put this card into your hand as it resolves.) Prevent all combat damage that would be dealt this turn.
The Ever-Changing 'Dane WUBLegendary Creature — Shapeshifter {1}, Sacrifice another creature: The Ever-Changing 'Dane becomes a copy of the sacrificed creature, except it has this ability. 3/3
Soul Foundry 4Artifact Imprint — When Soul Foundry enters the battlefield, you may exile a creature card from your hand. {X}, {T}: Create a token that's a copy of the exiled card. X is the mana value of that card.
Surge Engine 2Artifact Creature — Construct Defender {U}: Surge Engine loses defender and gains "This creature can't be blocked." {2}{U}: Surge Engine becomes blue and has base power and toughness 5/4. Activate only if Surge Engine doesn't have defender. {4}{U}{U}: Draw three cards. Activate only if Surge Engine is blue and only once. 3/2
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