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
Reaver Drone BCreature — Eldrazi Drone Devoid (This card has no color.) At the beginning of your upkeep, you lose 1 life unless you control another colorless creature. 2/1
Malakir Bloodwitch 3BBCreature — Vampire Shaman Flying, protection from white When Malakir Bloodwitch enters the battlefield, each opponent loses life equal to the number of Vampires you control. You gain life equal to the life lost this way. 4/4
Gonti, Lord of Luxury 2BBLegendary Creature — Aetherborn Rogue Deathtouch When Gonti, Lord of Luxury enters the battlefield, look at the top four cards of target opponent's library, exile one of them face down, then put the rest on the bottom of that library in a random order. You may cast that card for as long as it remains exiled, and mana of any type can be spent to cast that spell. 2/3
Virtue of Knowledge 4UEnchantment If a permanent entering the battlefield causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.
Oath of the Grey Host 3BEnchantment — Saga (As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I — You and target opponent each create a Food token. II — Each opponent loses 3 life. Create a Treasure token. III — Create three tapped 1/1 white Spirit creature tokens with flying.
Fleshwrither 2BBCreature — Horror Transfigure {1}{B}{B} ({1}{B}{B}, Sacrifice this creature: Search your library for a creature card with the same mana value as this creature, put that card onto the battlefield, then shuffle. Transfigure only as a sorcery.) 3/3
Festival of the Guildpact XWInstant Prevent the next X damage that would be dealt to you this turn. Draw a card.
Thief of Sanity 1UBCreature — Specter Flying Whenever Thief of Sanity deals combat damage to a player, look at the top three cards of that player's library, exile one of them face down, then put the rest into their graveyard. You may cast that card for as long as it remains exiled, and mana of any type can be spent to cast that spell. 2/2
Paragon of the Amesha 2WCreature — Human Knight First strike {W}{U}{B}{R}{G}: Until end of turn, Paragon of the Amesha becomes an Angel, gets +3/+3, and gains flying and lifelink. 2/2
Explosive Revelation 3RRSorcery Choose any target. Reveal cards from the top of your library until you reveal a nonland card. Explosive Revelation deals damage equal to that card's mana value to that permanent or player. Put the nonland card into your hand and the rest on the bottom of your library in any order.
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