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
Lich's Mastery 3BBBLegendary Enchantment Hexproof You can't lose the game. Whenever you gain life, draw that many cards. Whenever you lose life, for each 1 life you lost, exile a permanent you control or a card from your hand or graveyard. When Lich's Mastery leaves the battlefield, you lose the game.
Blessed Wind 7WWSorcery Target player's life total becomes 20.
Wild Cantor R/GCreature — Human Druid ({R/G} can be paid with either {R} or {G}.) Sacrifice Wild Cantor: Add one mana of any color. 1/1
Traverse Eternity 2UUSorcery Draw cards equal to the highest mana value among historic permanents you control. (Artifacts, legendaries, and Sagas are historic.)
Coveted Prize 4BSorcery This spell costs {1} less to cast for each creature in your party. (Your party consists of up to one each of Cleric, Rogue, Warrior, and Wizard.) Search your library for a card, put it into your hand, then shuffle. If you have a full party, you may cast a spell with mana value 4 or less from your hand without paying its mana cost.
Illusion UInstant Target spell or permanent becomes the color of your choice until end of turn.
Haven of the Spirit Dragon Land {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a Dragon creature spell. {2}, {T}, Sacrifice Haven of the Spirit Dragon: Return target Dragon creature card or Ugin planeswalker card from your graveyard to your hand.
Patriar's Seal 3Artifact {T}: Add one mana of any color. {1}, {T}: Untap target legendary creature you control.
Ichor Elixir 4Artifact If you would roll one or more planar dice, instead roll that many planar dice plus one and ignore one. {T}: Add {C}{C}.
Stinging Study 4BInstant You draw X cards and you lose X life, where X is the mana value of a commander you own on the battlefield or in the command zone.
Page 78