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
Natural Affinity 2GInstant All lands become 2/2 creatures until end of turn. They're still lands.
Ojer Axonil, Deepest Might 2RRLegendary Creature — God Trample If a red source you control would deal an amount of noncombat damage less than Ojer Axonil's power to an opponent, that source deals damage equal to Ojer Axonil's power instead. When Ojer Axonil dies, return it to the battlefield tapped and transformed under its owner's control. 4/4
Foul-Tongue Shriek BInstant Target opponent loses 1 life for each attacking creature you control. You gain that much life.
Scourge of the Skyclaves 1BCreature — Demon Kicker {4}{B} When you cast this spell, if it was kicked, each player loses half their life, rounded up. Scourge of the Skyclaves's power and toughness are each equal to 20 minus the highest life total among players. */*
Coalition Relic 3Artifact {T}: Add one mana of any color. {T}: Put a charge counter on Coalition Relic. At the beginning of your precombat main phase, remove all charge counters from Coalition Relic. Add one mana of any color for each charge counter removed this way.
Carnelian Orb of Dragonkind 2RArtifact {T}: Add {R}. If that mana is spent on a Dragon creature spell, it gains haste until end of turn.
Crucias, Titan of the Waves 1BRLegendary Creature — Human Pirate At the beginning of your end step, you may discard a card. If you do, create a Treasure token and choose ambitious or expedient. If you chose ambitious, seek a card with greater mana value than the discarded card. If you chose expedient, seek a card with lesser mana value than the discarded card. 3/1
Undying Flames 4RRSorcery Exile cards from the top of your library until you exile a nonland card. Undying Flames deals damage to any target equal to that card's mana value. Epic (For the rest of the game, you can't cast spells. At the beginning of each of your upkeeps, copy this spell except for its epic ability. You may choose a new target for the copy.)
Boon of Boseiju 1GInstant Target creature gets +X/+X until end of turn, where X is the greatest mana value among permanents you control. Untap it.
Ramosian Sky Marshal 3WWCreature — Human Rebel Flying {7}, {T}: Search your library for a Rebel permanent card with mana value 6 or less, put it onto the battlefield, then shuffle. 3/3
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