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
Slate Street Ruffian 2BCreature — Human Warrior Whenever Slate Street Ruffian becomes blocked, defending player discards a card. 2/2
Desertion 3UUInstant Counter target spell. If an artifact or creature spell is countered this way, put that card onto the battlefield under your control instead of into its owner's graveyard.
Kessig Plane — Innistrad Prevent all combat damage that would be dealt by non-Werewolf creatures. Whenever chaos ensues, each creature you control gets +2/+2, gains trample, and becomes a Werewolf in addition to its other types until end of turn.
Resolute Rejection 1WInstant Target tapped creature perpetually loses all abilities, then Resolute Rejection deals 4 damage to it. Cycling {2}
Molder XGInstant Destroy target artifact or enchantment with mana value X. It can't be regenerated. You gain X life.
Mind's Desire 4UUSorcery Shuffle your library. Then exile the top card of your library. Until end of turn, you may play that card without paying its mana cost. Storm (When you cast this spell, copy it for each spell cast before it this turn.)
Orb of Dragonkind 1RArtifact {1}, {T}: Add two mana in any combination of colors. Spend this mana only to cast Dragon spells or activate abilities of Dragons. {R}, {T}, Sacrifice Orb of Dragonkind: Look at the top seven cards of your library. You may reveal a Dragon card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.
Selfless Squire 3WCreature — Human Soldier Flash When Selfless Squire enters the battlefield, prevent all damage that would be dealt to you this turn. Whenever damage that would be dealt to you is prevented, put that many +1/+1 counters on Selfless Squire. 1/1
Dream Devourer 1BCreature — Demon Cleric Each nonland card in your hand without foretell has foretell. Its foretell cost is equal to its mana cost reduced by {2}. (During your turn, you may pay {2} and exile it from your hand face down. Cast it on a later turn for its foretell cost.) Whenever you foretell a card, Dream Devourer gets +2/+0 until end of turn. 0/3
Ardenvale Paladin 3WCreature — Human Knight Adamant — If at least three white mana was spent to cast this spell, Ardenvale Paladin enters the battlefield with a +1/+1 counter on it. 2/5
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