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
TARDIS Bay Plane — Gallifrey The first spell you cast during each of your turns with mana value 2 or greater has cascade. (When you cast that spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.) When chaos ensues, gain control of target artifact. Then planeswalk.
Aisling Leprechaun GCreature — Faerie Whenever Aisling Leprechaun blocks or becomes blocked by a creature, that creature becomes green. (This effect lasts indefinitely.) 1/1
Orim's Cure 1WInstant If you control a Plains, you may tap an untapped creature you control rather than pay this spell's mana cost. Prevent the next 4 damage that would be dealt to any target this turn.
Honored Hierarch GCreature — Human Druid Renown 1 (When this creature deals combat damage to a player, if it isn't renowned, put a +1/+1 counter on it and it becomes renowned.) As long as Honored Hierarch is renowned, it has vigilance and "{T}: Add one mana of any color." 1/1
Brisela, Voice of Nightmares Legendary Creature — Eldrazi Angel Flying, first strike, vigilance, lifelink Your opponents can't cast spells with mana value 3 or less. 9/10
Rathi Intimidator 1BBCreature — Phyrexian Horror Mercenary Fear (This creature can't be blocked except by artifact creatures and/or black creatures.) {2}, {T}: Search your library for a Mercenary permanent card with mana value 2 or less, put it onto the battlefield, then shuffle. 2/1
Massacre 2BBSorcery If an opponent controls a Plains and you control a Swamp, you may cast this spell without paying its mana cost. All creatures get -2/-2 until end of turn.
Dream Coat UEnchantment — Aura Enchant creature {0}: Enchanted creature becomes the color or colors of your choice. Activate only once each turn.
Crumbling Vestige Land Crumbling Vestige enters the battlefield tapped. When Crumbling Vestige enters the battlefield, add one mana of any color. {T}: Add {C}. ({C} represents colorless mana.)
Extraplanar Lens 3Artifact Imprint — When Extraplanar Lens enters the battlefield, you may exile target land you control. Whenever a land with the same name as the exiled card is tapped for mana, its controller adds one mana of any type that land produced.
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