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
Neurok Transmuter 2UCreature — Human Wizard {U}: Target creature becomes an artifact in addition to its other types until end of turn. {U}: Until end of turn, target artifact creature becomes blue and isn't an artifact. 2/2
Fist of Suns 3Artifact You may pay {W}{U}{B}{R}{G} rather than pay the mana cost for spells you cast.
Tainted Indulgence UBInstant Draw two cards. Then discard a card unless there are five or more mana values among cards in your graveyard.
Zhalfirin Crusader 1WWCreature — Human Knight Flanking (Whenever a creature without flanking blocks this creature, the blocking creature gets -1/-1 until end of turn.) {1}{W}: The next 1 damage that would be dealt to Zhalfirin Crusader this turn is dealt to any target instead. 2/2
Brain in a Jar 2Artifact {1}, {T}: Put a charge counter on Brain in a Jar, then you may cast an instant or sorcery spell with mana value equal to the number of charge counters on Brain in a Jar from your hand without paying its mana cost. {3}, {T}, Remove X charge counters from Brain in a Jar: Scry X.
The Fifteenth Doctor 2URLegendary Creature — Time Lord Doctor When The Fifteenth Doctor enters the battlefield or attacks, mill three cards. You may put an artifact card with mana value 2 or 3 from among them into your hand. The first nonartifact spell you cast each turn has improvise. (Your artifacts can help cast that spell. Each artifact you tap after you're done activating mana abilities pays for {1}.) 3/3
Better Offer XUSorcery Put a random creature card with mana value X or less from target opponent's library onto the battlefield under your control. It perpetually has base power and toughness X/X and perpetually gains ward {1}.
Shadow of the Enemy 3BBBSorcery Exile all creature cards from target player's graveyard. You may cast spells from among those cards for as long as they remain exiled, and mana of any type can be spent to cast them.
Geth's Verdict BBInstant Target player sacrifices a creature and loses 1 life.
Blood-Toll Harpy 2BCreature — Harpy Flying When Blood-Toll Harpy enters the battlefield, each player loses 1 life. 2/1
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