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
Buried Treasure 2Artifact — Treasure {T}, Sacrifice Buried Treasure: Add one mana of any color. {5}, Exile Buried Treasure from your graveyard: Discover 5. Activate only as a sorcery. (Exile cards from the top of your library until you exile a nonland card with mana value 5 or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.)
Ugin's Insight 3UUSorcery Scry X, where X is the highest mana value among permanents you control, then draw three cards.
Balduvian Trading Post Land If Balduvian Trading Post would enter the battlefield, sacrifice an untapped Mountain instead. If you do, put Balduvian Trading Post onto the battlefield. If you don't, put it into its owner's graveyard. {T}: Add {C}{R}. {1}, {T}: Balduvian Trading Post deals 1 damage to target attacking creature.
Viashino Heretic 2RCreature — Viashino {1}{R}, {T}: Destroy target artifact. Viashino Heretic deals damage to that artifact's controller equal to the artifact's mana value. 1/3
Lobelia, Defender of Bag End 2BLegendary Creature — Halfling Citizen When Lobelia enters the battlefield, look at the top card of each opponent's library and exile those cards face down. {T}, Sacrifice an artifact: Choose one — • Until end of turn, you may play a card exiled with Lobelia without paying its mana cost. • Each opponent loses 2 life and you gain 2 life. 2/2
Heartstone 3Artifact Activated abilities of creatures cost {1} less to activate. This effect can't reduce the mana in that cost to less than one mana.
Ria Ivor, Bane of Bladehold 2WBLegendary Creature — Phyrexian Knight Battle cry (Whenever this creature attacks, each other attacking creature gets +1/+0 until end of turn.) At the beginning of combat on your turn, the next time target creature would deal combat damage to one or more players this combat, prevent that damage. If damage is prevented this way, create that many 1/1 colorless Phyrexian Mite artifact creature tokens with toxic 1 and "This creature can't block." 3/4
Lavabrink Venturer 2WCreature — Human Soldier As Lavabrink Venturer enters the battlefield, choose odd or even. (Zero is even.) Lavabrink Venturer has protection from each mana value of the chosen quality. 3/3
Scalding Viper 1RCreature — Elemental Snake Whenever an opponent casts a spell with mana value 3 or less, Scalding Viper deals 1 damage to that player. 2/1
Kjeldoran Outpost Land If Kjeldoran Outpost would enter the battlefield, sacrifice a Plains instead. If you do, put Kjeldoran Outpost onto the battlefield. If you don't, put it into its owner's graveyard. {T}: Add {W}. {1}{W}, {T}: Create a 1/1 white Soldier creature token.
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