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
Flames of Moradin 2RRSorcery Destroy up to three target artifacts. Conjure a duplicate of each nontoken artifact destroyed this way into your hand. The duplicates perpetually gain "You may pay {R} rather than pay this spell's mana cost" and "At the beginning of your end step, sacrifice this artifact."
Epicenter 4RSorcery Target player sacrifices a land. Threshold — Each player sacrifices all lands they control instead if seven or more cards are in your graveyard.
Talruum Champion 4RCreature — Minotaur First strike Whenever Talruum Champion blocks or becomes blocked by a creature, that creature loses first strike until end of turn. 3/3
Metrognome 4Artifact When a spell or ability an opponent controls causes you to discard Metrognome, create four 1/1 colorless Gnome artifact creature tokens. {4}, {T}: Create a 1/1 colorless Gnome artifact creature token.
Gibbering Descent 4BBEnchantment At the beginning of each player's upkeep, that player loses 1 life and discards a card. Hellbent — Skip your upkeep step if you have no cards in hand. Madness {2}{B}{B} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)
Behind the Mask UInstant As an additional cost to cast this spell, you may collect evidence 6. (Exile cards with total mana value 6 or greater from your graveyard.) Until end of turn, target artifact or creature becomes an artifact creature with base power and toughness 4/3. If evidence was collected, it has base power and toughness 1/1 until end of turn instead.
Zof Consumption 4BBSorcery Each opponent loses 4 life and you gain 4 life.
Library of Leng 1Artifact You have no maximum hand size. If an effect causes you to discard a card, discard it, but you may put it on top of your library instead of into your graveyard.
Vampire's Kiss 1BSorcery Target player loses 2 life and you gain 2 life. Create two Blood tokens. (They're artifacts with "{1}, {T}, Discard a card, Sacrifice this artifact: Draw a card.")
Yule Ooze 2RGCreature — Ooze At the beginning of your upkeep, destroy another nonland permanent chosen at random, then put a number of +1/+1 counters on Yule Ooze equal to that permanent's converted mana cost. {R}{G}, Eat some food: Regenerate Yule Ooze. 1/1
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