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
Veteran of the Depths 3WCreature — Merfolk Soldier Whenever Veteran of the Depths becomes tapped, you may put a +1/+1 counter on it. 2/2
Shanid, Sleepers' Scourge 1RWBLegendary Creature — Human Knight Menace Other legendary creatures you control have menace. Whenever you play a legendary land or cast a legendary spell, you draw a card and you lose 1 life. 2/4
Omnibian 1GGUCreature — Frog {T}: Target creature becomes a Frog with base power and toughness 3/3 until end of turn. 3/3
Slitherwisp UBBCreature — Elemental Nightmare Flash Whenever you cast another spell that has flash, you draw a card and each opponent loses 1 life. 3/2
Drain Life X1BSorcery Spend only black mana on X. Drain Life deals X damage to any target. You gain life equal to the damage dealt, but not more life than the player's life total before the damage was dealt, the planeswalker's loyalty before the damage was dealt, or the creature's toughness.
Betrayal UEnchantment — Aura Enchant creature an opponent controls Whenever enchanted creature becomes tapped, you draw a card.
Engulfing Slagwurm 5GGCreature — Wurm Whenever Engulfing Slagwurm blocks or becomes blocked by a creature, destroy that creature. You gain life equal to that creature's toughness. 7/7
Gemstone Array 4Artifact {2}: Put a charge counter on Gemstone Array. Remove a charge counter from Gemstone Array: Add one mana of any color.
Wurmquake 4GGSorcery Corrupted — Create an X/X green Phyrexian Wurm creature token with trample and toxic 1, where X is the amount of mana spent to cast this spell. Then for each opponent with three or more poison counters, you create another one of those tokens. Flashback {8}{G}{G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)
Darksteel Mutation 1WEnchantment — Aura Enchant creature Enchanted creature is an Insect artifact creature with base power and toughness 0/1 and has indestructible, and it loses all other abilities, card types, and creature types.
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