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
Rune-Tail's Essence Legendary Enchantment Prevent all damage that would be dealt to creatures you control.
Blot Out 2BInstant Target opponent exiles a creature or planeswalker they control with the greatest mana value among creatures and planeswalkers they control.
Karn, the Great Creator 4Legendary Planeswalker — Karn Activated abilities of artifacts your opponents control can't be activated. [+1]: Until your next turn, up to one target noncreature artifact becomes an artifact creature with power and toughness each equal to its mana value. [−2]: You may reveal an artifact card you own from outside the game or choose a face-up artifact card you own in exile. Put that card into your hand. Loyalty 5
Locthwain Paladin 3BCreature — Human Knight Menace (This creature can't be blocked except by two or more creatures.) Adamant — If at least three black mana was spent to cast this spell, Locthwain Paladin enters the battlefield with a +1/+1 counter on it. 3/2
Endurance Bobblehead 3Artifact — Bobblehead {T}: Add one mana of any color. {3}, {T}: Up to X target creatures you control get +1/+0 and gain indestructible until end of turn, where X is the number of Bobbleheads you control as you activate this ability. Activate only as a sorcery.
Case File Auditor 2WCreature — Human Detective When Case File Auditor enters the battlefield and whenever you solve a Case, look at the top six cards of your library. You may reveal an enchantment card from among them and put it into your hand. Put the rest on the bottom of your library in a random order. You may spend mana as though it were mana of any color to cast Case spells. 1/4
Rock Basilisk 4RGCreature — Basilisk Whenever Rock Basilisk blocks or becomes blocked by a non-Wall creature, destroy that creature at end of combat. 4/5
Thicket Basilisk 3GGCreature — Basilisk Whenever Thicket Basilisk blocks or becomes blocked by a non-Wall creature, destroy that creature at end of combat. 2/4
The Fertile Lands of Saulvinia Plane — Antausia Whenever a player taps a land for mana, that player adds one mana of any type that land produced. Whenever chaos ensues, reveal cards from the top of your planar deck until you reveal a plane card. Chaos ensues on that plane. Then put all cards revealed this way on the bottom of your planar deck in any order.
Stinging Cave Crawler 2BCreature — Insect Horror Deathtouch Descend 4 — Whenever Stinging Cave Crawler attacks, if there are four or more permanent cards in your graveyard, you draw a card and you lose 1 life. 1/3
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