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
Gempalm Polluter 5BCreature — Zombie Cycling {B}{B} ({B}{B}, Discard this card: Draw a card.) When you cycle Gempalm Polluter, you may have target player lose life equal to the number of Zombies on the battlefield. 4/3
Metallurgic Summonings 3UUEnchantment Whenever you cast an instant or sorcery spell, create an X/X colorless Construct artifact creature token, where X is that spell's mana value. {3}{U}{U}, Exile Metallurgic Summonings: Return all instant and sorcery cards from your graveyard to your hand. Activate only if you control six or more artifacts.
Ghitu Encampment Land Ghitu Encampment enters the battlefield tapped. {T}: Add {R}. {1}{R}: Ghitu Encampment becomes a 2/1 red Warrior creature with first strike until end of turn. It's still a land. (It deals combat damage before creatures without first strike.)
Ruinous Intrusion 3GInstant Exile target artifact or enchantment. Put X +1/+1 counters on target creature you control, where X is the mana value of the permanent exiled this way.
Relic of Sauron 4Artifact {T}: Add two mana in any combination of {U}, {B}, and/or {R}. {3}, {T}: Draw two cards, then discard a card.
Smallpox BBSorcery Each player loses 1 life, discards a card, sacrifices a creature, then sacrifices a land.
Curtain of Light 1WInstant Cast this spell only during combat after blockers are declared. Target unblocked attacking creature becomes blocked. (This spell works on creatures that can't be blocked.) Draw a card.
Obyra, Dreaming Duelist UBLegendary Creature — Faerie Warrior Flash Flying Whenever another Faerie enters the battlefield under your control, each opponent loses 1 life. 2/2
Nirkana Revenant 4BBCreature — Vampire Shade Whenever you tap a Swamp for mana, add an additional {B}. {B}: Nirkana Revenant gets +1/+1 until end of turn. 4/4
Vizkopa Guildmage WBCreature — Human Wizard {1}{W}{B}: Target creature gains lifelink until end of turn. {1}{W}{B}: Whenever you gain life this turn, each opponent loses that much life. 2/2
Page 317