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
Lotus Cobra 1GCreature — Snake Landfall — Whenever a land enters the battlefield under your control, add one mana of any color. 2/1
Tok-Tok, Volcano Born Legendary Creature — Goblin Shaman Protection from red If a red source would deal damage to a player, it deals that much damage plus 1 to that player instead. 2/2
Rune of Protection: Artifacts 1WEnchantment {W}: The next time an artifact source of your choice would deal damage to you this turn, prevent that damage. Cycling {2} ({2}, Discard this card: Draw a card.)
Rahilda, Feral Outlaw Legendary Creature — Werewolf Double strike When Rahilda, Feral Outlaw deals combat damage to a player, exile a nonland card from their library at random. During any turn you attacked with a Wolf or Werewolf, you may cast that card and you may spend mana as though it were mana of any color to cast that spell. Nightbound 2/2
King Narfi's Betrayal 1UBEnchantment — Saga (As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I — Each player mills four cards. Then you may exile a creature or planeswalker card from each graveyard. II, III — Until end of turn, you may cast spells from among cards exiled with King Narfi's Betrayal, and you may spend mana as though it were mana of any color to cast those spells.
Tanuki Transplanter 3GArtifact Creature — Equipment Dog Whenever Tanuki Transplanter or equipped creature attacks, add an amount of {G} equal to its power. Until end of turn, you don't lose this mana as steps and phases end. Reconfigure {3} ({3}: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.) 2/4
Chromatic Star 1Artifact {1}, {T}, Sacrifice Chromatic Star: Add one mana of any color. When Chromatic Star is put into a graveyard from the battlefield, draw a card.
Overblaze 3RInstant — Arcane Each time target permanent would deal damage to a permanent or player this turn, it deals double that damage to that permanent or player instead. Splice onto Arcane {2}{R}{R} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)
Kitesail Larcenist 2UCreature — Human Pirate Flying, ward {1} When Kitesail Larcenist enters the battlefield, for each player, choose up to one other target artifact or creature that player controls. For as long as Kitesail Larcenist remains on the battlefield, the chosen permanents become Treasure artifacts with "{T}, Sacrifice this artifact: Add one mana of any color" and lose all other abilities. 2/3
Steamflogger Boss 3RCreature — Goblin Rigger Other Riggers you control get +1/+0 and have haste. If a Rigger you control would assemble a Contraption, it assembles two Contraptions instead. 3/3
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