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
Lae'zel, Illithid Thrall 3WULegendary Creature — Gith Horror Warrior Double strike When this creature enters the battlefield or specializes, conjure a duplicate of a random creature card from an opponent's library into your hand. It perpetually gains "You may spend mana as though it were mana of any color to cast this spell." 3/6
Sunforger 3Artifact — Equipment Equipped creature gets +4/+0. {R}{W}, Unattach Sunforger: Search your library for a red or white instant card with mana value 4 or less and cast that card without paying its mana cost. Then shuffle. Equip {3}
Kari Zev's Expertise 1RRSorcery Gain control of target creature or Vehicle until end of turn. Untap it. It gains haste until end of turn. You may cast a spell with mana value 2 or less from your hand without paying its mana cost.
Painful Bond 1BInstant Draw two cards, then nonland cards in your hand with mana value 3 or less perpetually gain "When you cast this spell, you lose 1 life."
Inga and Esika 2GULegendary Creature — Human God Creatures you control have vigilance and "{T}: Add one mana of any color. Spend this mana only to cast a creature spell." Whenever you cast a creature spell, if three or more mana from creatures was spent to cast it, draw a card. 4/4
Karn, Silver Golem 5Legendary Artifact Creature — Golem Whenever Karn, Silver Golem blocks or becomes blocked, it gets -4/+4 until end of turn. {1}: Target noncreature artifact becomes an artifact creature with power and toughness each equal to its mana value until end of turn. 4/4
Study Hall Land {T}: Add {C}. {1}, {T}: Add one mana of any color. When you spend this mana to cast your commander, scry X, where X is the number of times it's been cast from the command zone this game.
Su-Chi Cave Guard 8Artifact Creature — Construct Vigilance Ward {4} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {4}.) When Su-Chi Cave Guard dies, add eight {C}. Until end of turn, you don't lose this mana as steps and phases end. 8/8
Blighted Burgeoning 2GEnchantment — Aura Enchant land When Blighted Burgeoning enters the battlefield, incubate 2. (Create an Incubator token with two +1/+1 counters on it and "{2}: Transform this artifact." It transforms into a 0/0 Phyrexian artifact creature.) Whenever enchanted land is tapped for mana, its controller adds an additional one mana of any color.
Hall of Gemstone 1GGWorld Enchantment At the beginning of each player's upkeep, that player chooses a color. Until end of turn, lands tapped for mana produce mana of the chosen color instead of any other color.
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