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
Ugin's Labyrinth Land Imprint — When Ugin's Labyrinth enters the battlefield, you may exile a colorless card with mana value 7 or greater from your hand. {T}: Add {C}. If a card is exiled with Ugin's Labyrinth, add {C}{C} instead. {T}: Return the exiled card to its owner's hand.
Sanctifier en-Vec WWCreature — Human Cleric Protection from black and from red When Sanctifier en-Vec enters the battlefield, exile all cards that are black or red from all graveyards. If a black or red permanent, spell, or card not on the battlefield would be put into a graveyard, exile it instead. 2/2
Necra Sanctuary 2BEnchantment At the beginning of your upkeep, if you control a green or white permanent, target player loses 1 life. If you control a green permanent and a white permanent, that player loses 3 life instead.
Circle of Despair 1WBEnchantment {1}, Sacrifice a creature: The next time a source of your choice would deal damage to any target this turn, prevent that damage.
Martyr's Cause 2WEnchantment Sacrifice a creature: The next time a source of your choice would deal damage to any target this turn, prevent that damage.
Kumano, Master Yamabushi 3RRLegendary Creature — Human Shaman {1}{R}: Kumano, Master Yamabushi deals 1 damage to any target. If a creature dealt damage by Kumano this turn would die, exile it instead. 4/4
Lazav, the Multifarious UBLegendary Creature — Shapeshifter When Lazav, the Multifarious enters the battlefield, surveil 1. (Look at the top card of your library. You may put it into your graveyard.) {X}: Lazav, the Multifarious becomes a copy of target creature card in your graveyard with mana value X, except its name is Lazav, the Multifarious, it's legendary in addition to its other types, and it has this ability. 1/3
Agent of Raffine UCreature — Human Rogue {2}, {T}: Choose target opponent. Conjure a duplicate of the top card of their library into your hand. It perpetually gains "You may spend mana as though it were mana of any color to cast this spell." Then they exile the top card of their library face down. 1/2
Gutmorn, Pactbound Servant 2BLegendary Creature — Demon Flying, deathtouch When Gutmorn, Pactbound Servant enters the battlefield, each player discards a nonland card. Whenever a player discards a card during your turn, they choose another player. That player conjures a duplicate of that card into their hand. It perpetually gains "You may spend mana as though it were mana of any color to cast this spell." 1/3
Vedalken Squirrel-Whacker 3UCreature — Vedalken Guest As Vedalken Squirrel-Whacker enters the battlefield, roll a six-sided die twice. Its base power becomes the first result and its base toughness becomes the second result. If you would roll one or more six-sided dice, instead roll them and you may exchange one result with Vedalken Squirrel-Whacker's base power or base toughness. */*
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