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
Ozolith, the Shattered Spire 1GLegendary Artifact If one or more +1/+1 counters would be put on an artifact or creature you control, that many plus one +1/+1 counters are put on it instead. {1}{G}, {T}: Put a +1/+1 counter on target artifact or creature you control. Activate only as a sorcery. Cycling {2} ({2}, Discard this card: Draw a card.)
Mistform Wall 2UCreature — Illusion Wall Mistform Wall has defender as long as it's a Wall. {1}: Mistform Wall becomes the creature type of your choice until end of turn. 1/4
Saint Elenda 4WWWLegendary Creature — Vampire Cleric Lifelink When Saint Elenda enters the battlefield, conjure a card of your choice from Saint Elenda's spellbook into your hand. You may cast that card this turn without paying its mana cost. At the beginning of your end step, if you gained life this turn, create an X/X white Avatar creature token, where X is the amount of life you gained this turn. 4/7
Inferno Project 6RCreature — Elemental Trample Inferno Project enters the battlefield with X +1/+1 counters on it, where X is the total mana value of instant and sorcery cards in your graveyard. 0/0
Mizzium Transreliquat 3Artifact {3}: Mizzium Transreliquat becomes a copy of target artifact until end of turn. {1}{U}{R}: Mizzium Transreliquat becomes a copy of target artifact, except it has this ability.
Turn the Tables 3WWInstant All combat damage that would be dealt to you this turn is dealt to target attacking creature instead.
Mirage Mesa Land — Desert Mirage Mesa enters the battlefield tapped. As it enters, choose a color. {T}: Add one mana of the chosen color.
Gauntlet of Might 4Artifact Red creatures get +1/+1. Whenever a Mountain is tapped for mana, its controller adds an additional {R}.
Blood Tithe 3BSorcery Each opponent loses 3 life. You gain life equal to the life lost this way.
Mirrex Land — Sphere {T}: Add {C}. {T}: Add one mana of any color. Activate only if Mirrex entered the battlefield this turn. {3}, {T}: Create a 1/1 colorless Phyrexian Mite artifact creature token with toxic 1 and "This creature can't block." (Players dealt combat damage by it also get a poison counter.)
Page 206