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
Agatha's Soul Cauldron 2Legendary Artifact You may spend mana as though it were mana of any color to activate abilities of creatures you control. Creatures you control with +1/+1 counters on them have all activated abilities of all creature cards exiled with Agatha's Soul Cauldron. {T}: Exile target card from a graveyard. When a creature card is exiled this way, put a +1/+1 counter on target creature you control.
Charm School 2WEnchantment As Charm School enters the battlefield, choose a color and balance Charm School on your head. Prevent all damage that would be dealt to you by sources of the chosen color. When Charm School falls off your head, sacrifice Charm School.
Firestorm Phoenix 4RRCreature — Phoenix Flying If Firestorm Phoenix would die, return it to its owner's hand instead. Until that player's next turn, that player plays with that card revealed in their hand and can't play it. 3/2
Benthic Djinn 2UBCreature — Djinn Islandwalk (This creature can't be blocked as long as defending player controls an Island.) At the beginning of your upkeep, you lose 2 life. 5/3
Peer into the Abyss 4BBBSorcery Target player draws cards equal to half the number of cards in their library and loses half their life. Round up each time.
Mind's Dilation 5UUEnchantment Whenever an opponent casts their first spell each turn, that player exiles the top card of their library. If it's a nonland card, you may cast it without paying its mana cost.
Urborg Syphon-Mage 2BCreature — Human Spellshaper {2}{B}, {T}, Discard a card: Each other player loses 2 life. You gain life equal to the life lost this way. 2/2
Dominator Drone 2BCreature — Eldrazi Drone Devoid (This card has no color.) Ingest (Whenever this creature deals combat damage to a player, that player exiles the top card of their library.) When Dominator Drone enters the battlefield, if you control another colorless creature, each opponent loses 2 life. 3/2
Extraction Specialist 2WCreature — Human Rogue Lifelink When Extraction Specialist enters the battlefield, return target creature card with mana value 2 or less from your graveyard to the battlefield. That creature can't attack or block for as long as you control Extraction Specialist. 3/2
Interpret the Signs 5USorcery Scry 3, then reveal the top card of your library. Draw cards equal to that card's mana value. (To scry 3, look at the top three cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.)
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