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
Umbra Stalker 4BBBCreature — Elemental Chroma — Umbra Stalker's power and toughness are each equal to the number of black mana symbols in the mana costs of cards in your graveyard. */*
Runecarved Obelisk 4Artifact {T}: Add {C}{C}. Put two charge counters on Runecarved Obelisk. {T}, Sacrifice Runecarved Obelisk: Seek a card with the highest mana value among cards in your library with mana value X or less, where X is the number of charge counters on Runecarved Obelisk.
Serene Sunset XGInstant Prevent all combat damage X target creatures would deal this turn.
Division Table Artifact — Contraption Whenever you crank Division Table, target player loses 2 life.
Atarka Monument 3Artifact {T}: Add {R} or {G}. {4}{R}{G}: Atarka Monument becomes a 4/4 red and green Dragon artifact creature with flying until end of turn.
Rhystic Cave Land {T}: Choose a color. Add one mana of that color unless any player pays {1}. Activate only as an instant.
Spawnsire of Ulamog 10Creature — Eldrazi Annihilator 1 (Whenever this creature attacks, defending player sacrifices a permanent.) {4}: Create two 0/1 colorless Eldrazi Spawn creature tokens. They have "Sacrifice this creature: Add {C}." {20}: Cast any number of Eldrazi spells from among cards you own outside the game without paying their mana costs. 7/11
Reflecting Mirror 4Artifact {X}, {T}: Change the target of target spell with a single target if that target is you. The new target must be a player. X is twice the mana value of that spell.
Barrowin of Clan Undurr 2WBLegendary Creature — Dwarf Cleric When Barrowin of Clan Undurr enters the battlefield, venture into the dungeon. (Enter the first room or advance to the next room.) Whenever Barrowin of Clan Undurr attacks, return up to one creature card with mana value 3 or less from your graveyard to the battlefield if you've completed a dungeon. 3/3
Lively Dirge 1BSorcery Spree (Choose one or more additional costs.) + {1} — Search your library for a card, put it into your graveyard, then shuffle. + {2} — Return up to two creature cards with total mana value 4 or less from your graveyard to the battlefield.
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