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
Fevered Suspicion 6BRSorcery Each opponent exiles cards from the top of their library until they exile a nonland card. You may cast any number of spells from among those nonland cards without paying their mana costs. Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)
Predators' Hour 1BSorcery Until end of turn, creatures you control gain menace and "Whenever this creature deals combat damage to a player, exile the top card of that player's library face down. You may look at and play that card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast that spell."
Obscura Charm WUBInstant Choose one — • Return target multicolored permanent card with mana value 3 or less from your graveyard to the battlefield tapped. • Counter target instant or sorcery spell. • Destroy target creature or planeswalker with mana value 3 or less.
Deathlace BInstant Target spell or permanent becomes black. (Mana symbols on that permanent remain unchanged.)
Spinerock Knoll Land Hideaway 4 (When this land enters the battlefield, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.) Spinerock Knoll enters the battlefield tapped. {T}: Add {R}. {R}, {T}: You may play the exiled card without paying its mana cost if an opponent was dealt 7 or more damage this turn.
Song of Inspiration 3GGInstant Choose up to two target permanent cards in your graveyard. Roll a d20 and add the total mana value of those cards. 1—14 | Return those cards to your hand. 15+ | Return those cards to your hand. You gain life equal to their total mana value.
Heretic's Punishment 4REnchantment {3}{R}: Choose any target, then mill three cards. Heretic's Punishment deals damage to that permanent or player equal to the highest mana value among the milled cards.
Transcendence 3WWWEnchantment You don't lose the game for having 0 or less life. When you have 20 or more life, you lose the game. Whenever you lose life, you gain 2 life for each 1 life you lost. (Damage dealt to you causes you to lose life.)
Cateran Slaver 4BBCreature — Horror Mercenary Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.) {5}, {T}: Search your library for a Mercenary permanent card with mana value 5 or less, put it onto the battlefield, then shuffle. 5/5
Cateran Brute 2BCreature — Horror Mercenary {2}, {T}: Search your library for a Mercenary permanent card with mana value 2 or less, put it onto the battlefield, then shuffle. 2/2
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