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
Gandalf the White 3WWLegendary Creature — Avatar Wizard Flash You may cast legendary spells and artifact spells as though they had flash. If a legendary permanent or an artifact entering or leaving the battlefield causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time. 4/5
Uncle Istvan 1BBBCreature — Human Prevent all damage that would be dealt to Uncle Istvan by creatures. 1/3
Triskaidekaphobia 3BEnchantment At the beginning of your upkeep, choose one — • Each player with exactly 13 life loses the game, then each player gains 1 life. • Each player with exactly 13 life loses the game, then each player loses 1 life.
Midnight Arsonist 3RCreature — Vampire When Midnight Arsonist enters the battlefield, destroy up to X target artifacts without mana abilities, where X is the number of Vampires you control. 3/2
Siren of the Silent Song 1UBCreature — Zombie Siren Flying Inspired — Whenever Siren of the Silent Song becomes untapped, each opponent discards a card, then each opponent mills a card. 2/1
Recoup 1RSorcery Target sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost. (Mana cost includes color.) Flashback {3}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)
Lapse of Certainty 2WInstant Counter target spell. If that spell is countered this way, put it on top of its owner's library instead of into that player's graveyard.
Memory Lapse 1UInstant Counter target spell. If that spell is countered this way, put it on top of its owner's library instead of into that player's graveyard.
Thunder Totem 3Artifact {T}: Add {W}. {1}{W}{W}: Thunder Totem becomes a 2/2 white Spirit artifact creature with flying and first strike until end of turn.
Boxing Ring 1GArtifact Whenever a creature enters the battlefield under your control, it fights up to one target creature you don't control with the same mana value. {T}: Create a Treasure token. Activate only if you control a creature that fought this turn.
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