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
Yamabushi's Storm 1RSorcery Yamabushi's Storm deals 1 damage to each creature. If a creature dealt damage this way would die this turn, exile it instead.
Conductive Current RRRSorcery Conductive Current deals 3 damage to each creature. Choose an instant or sorcery card in your hand. It perpetually gains "If this spell would deal noncombat damage to a permanent or player, it deals that much damage plus 2 instead."
Meteorite 5Artifact When Meteorite enters the battlefield, it deals 2 damage to any target. {T}: Add one mana of any color.
Skyclave Apparition 1WWCreature — Kor Spirit When Skyclave Apparition enters the battlefield, exile up to one target nonland, nontoken permanent you don't control with mana value 4 or less. When Skyclave Apparition leaves the battlefield, the exiled card's owner creates an X/X blue Illusion creature token, where X is the mana value of the exiled card. 2/2
Necra Disciple BCreature — Human Wizard {G}, {T}: Add one mana of any color. {W}, {T}: Prevent the next 1 damage that would be dealt to any target this turn. 1/1
Rushwood Legate 2GCreature — Dryad If an opponent controls an Island and you control a Forest, you may cast this spell without paying its mana cost. 2/1
Urza's Armor 6Artifact If a source would deal damage to you, prevent 1 of that damage.
Gaze of Granite XBBGSorcery Destroy each nonland permanent with mana value X or less.
Panoptic Mirror 5Artifact Imprint — {X}, {T}: You may exile an instant or sorcery card with mana value X from your hand. At the beginning of your upkeep, you may copy a card exiled with Panoptic Mirror. If you do, you may cast the copy without paying its mana cost.
Lake Silencio Plane — Earth Still Point in Time — All spells have split second. (As long as a spell with split second is on the stack, players can't cast spells or activate abilities that aren't mana abilities.) Whenever chaos ensues, Lake Silencio deals 6 damage to target creature an opponent controls. If a creature dealt damage this way would die this turn, exile it instead.
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