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
Warzone Duplicator 6Artifact Creature — Construct Prototype {3}{U} — 3/3 When Warzone Duplicator enters the battlefield, return target creature an opponent controls with power less than Warzone Duplicator's power to its owner's hand. If that creature wasn't a token, conjure a duplicate of it into your hand. It perpetually gains "You may spend mana as though it were mana of any color to cast this spell." 6/6
Planar Nexus Land Planar Nexus is every nonbasic land type. (Nonbasic land types include Cave, Desert, Gate, Lair, Locus, Mine, Power-Plant, Sphere, Tower, and Urza's.) {T}: Add {C}. {1}, {T}: Add one mana of any color.
Tar Pit Warrior 2BCreature — Cyclops Warrior When Tar Pit Warrior becomes the target of a spell or ability, sacrifice it. 3/4
Raggadragga, Goreguts Boss 2RGLegendary Creature — Human Boar Each creature you control with a mana ability gets +2/+2. Whenever a creature you control with a mana ability attacks, untap it. Whenever you cast a spell, if at least seven mana was spent to cast it, untap target creature. It gets +7/+7 and gains trample until end of turn. 4/4
Isengard Unleashed 2RRRSorcery Damage can't be prevented this turn. If a source you control would deal damage this turn to an opponent or a permanent an opponent controls, it deals triple that damage instead. Flashback {4}{R}{R}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)
Fierce Guardianship 2UInstant If you control a commander, you may cast this spell without paying its mana cost. Counter target noncreature spell.
Skittish Valesk 6RCreature — Beast At the beginning of your upkeep, flip a coin. If you lose the flip, turn Skittish Valesk face down. Morph {5}{R} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) 5/5
Pernicious Deed 1BGEnchantment {X}, Sacrifice Pernicious Deed: Destroy each artifact, creature, and enchantment with mana value X or less.
Blazing Blade Askari 2RCreature — Human Knight Flanking (Whenever a creature without flanking blocks this creature, the blocking creature gets -1/-1 until end of turn.) {2}: Blazing Blade Askari becomes colorless until end of turn. 2/2
Outrage Shaman 3RRCreature — Goblin Shaman Chroma — When Outrage Shaman enters the battlefield, it deals damage to target creature equal to the number of red mana symbols in the mana costs of permanents you control. 2/2
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