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
Command the Chaff 4UUInstant Look at target opponent's sideboard. You may cast a card from that sideboard without paying its mana cost. Exile Command the Chaff.
Flywheel Racer 2Artifact — Vehicle Vigilance {T}: Add one mana of any color. Activate only if Flywheel Racer is a creature. Crew 1 (Tap any number of creatures you control with total power 1 or more: This Vehicle becomes an artifact creature until end of turn.) 3/2
Quirion Explorer 1GCreature — Elf Druid Scout {T}: Add one mana of any color that a land an opponent controls could produce. 1/1
Crumbling Sanctuary 5Artifact If damage would be dealt to a player, that player exiles that many cards from the top of their library instead.
Snowborn Simulacra XUUSorcery Conjure a duplicate of each of X target nontoken permanents into your hand. Those cards perpetually gain "You may spend mana as though it were mana of any color to cast this spell." If X is 5 or more, you may put one of them from your hand onto the battlefield.
Rivaz of the Claw 1BRLegendary Creature — Viashino Warlock Menace {T}: Add two mana in any combination of colors. Spend this mana only to cast Dragon creature spells. Once during each of your turns, you may cast a Dragon creature spell from your graveyard. Whenever you cast a Dragon creature spell from your graveyard, it gains "When this creature dies, exile it." 3/3
Dark Tutelage 2BEnchantment At the beginning of your upkeep, reveal the top card of your library and put that card into your hand. You lose life equal to its mana value.
Sanctum of the Sun Legendary Land (Transforms from Azor's Gateway.) {T}: Add X mana of any one color, where X is your life total.
Knights of the Black Rose 3WBCreature — Human Knight When Knights of the Black Rose enters the battlefield, you become the monarch. Whenever an opponent becomes the monarch, if you were the monarch as the turn began, that player loses 2 life and you gain 2 life. 4/4
Gossamer Phantasm 1UCreature — Illusion Flying When Gossamer Phantasm becomes the target of a spell or ability, sacrifice it. 2/1
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