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
Foul Imp BBCreature — Imp Flying When Foul Imp enters the battlefield, you lose 2 life. 2/2
Prismatic Ward 1WEnchantment — Aura Enchant creature As Prismatic Ward enters the battlefield, choose a color. Prevent all damage that would be dealt to enchanted creature by sources of the chosen color.
Wicked Akuba BBCreature — Spirit {B}: Target player dealt damage by Wicked Akuba this turn loses 1 life. 2/2
Gemstone Mine Land Gemstone Mine enters the battlefield with three mining counters on it. {T}, Remove a mining counter from Gemstone Mine: Add one mana of any color. If there are no mining counters on Gemstone Mine, sacrifice it.
Harmonious Emergence 3GEnchantment — Aura Enchant land you control Enchanted land is a 4/5 green Spirit creature with vigilance and haste. It's still a land. If enchanted land would be destroyed, instead sacrifice Harmonious Emergence and that land gains indestructible until end of turn.
Keeper of Secrets 5RCreature — Demon First strike, haste Symphony of Pain — Whenever you cast a spell from anywhere other than your hand, Keeper of Secrets deals damage equal to that spell's mana value to target opponent. 6/4
Protean War Engine RWArtifact — Vehicle As Protean War Engine enters the battlefield, draft a card from Protean War Engine's spellbook and exile it. Whenever Protean War Engine becomes crewed, until end of turn, it becomes a copy of the exiled card, except it's a Vehicle artifact in addition to its other types. Crew 3 0/4
Personal Sanctuary 2WEnchantment During your turn, prevent all damage that would be dealt to you.
Ice Cauldron 4Artifact {X}, {T}: You may exile a nonland card from your hand. You may cast that card for as long as it remains exiled. Put a charge counter on Ice Cauldron and note the type and amount of mana spent to pay this activation cost. Activate only if there are no charge counters on Ice Cauldron. {T}, Remove a charge counter from Ice Cauldron: Add Ice Cauldron's last noted type and amount of mana. Spend this mana only to cast the last card exiled with Ice Cauldron.
Bombardment RSorcery Until end of turn, cards you own that aren't on the battlefield lose all card types, costs, names, and abilities and become red sorceries named Missile that cost {R} with "Missile deals 2 damage to any target."
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