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
Thunderstaff 3Artifact As long as Thunderstaff is untapped, if a creature would deal combat damage to you, prevent 1 of that damage. {2}, {T}: Attacking creatures get +1/+0 until end of turn.
Kamahl, Fist of Krosa 4GGLegendary Creature — Human Druid {G}: Target land becomes a 1/1 creature until end of turn. It's still a land. {2}{G}{G}{G}: Creatures you control get +3/+3 and gain trample until end of turn. 4/3
Dynaheir, Invoker Adept 1URWLegendary Creature — Human Wizard Haste You may activate abilities of other creatures you control as though those creatures had haste. {T}: When you next activate an ability that isn't a mana ability this turn by spending four or more mana to activate it, copy that ability. You may choose new targets for the copy. 4/4
Measure of Wickedness 3BEnchantment At the beginning of your end step, sacrifice Measure of Wickedness and you lose 8 life. Whenever another card is put into your graveyard from anywhere, target opponent gains control of Measure of Wickedness.
Flayer Drone 1BRCreature — Eldrazi Drone Devoid (This card has no color.) First strike Whenever another colorless creature enters the battlefield under your control, target opponent loses 1 life. 3/1
Phyrexian Devourer 6Artifact Creature — Phyrexian Construct When Phyrexian Devourer's power is 7 or greater, sacrifice it. Exile the top card of your library: Put X +1/+1 counters on Phyrexian Devourer, where X is the exiled card's mana value. 1/1
Everdawn Champion 1WWCreature — Human Soldier Prevent all combat damage that would be dealt to Everdawn Champion. 2/2
Vengeant Earth 1GInstant Target creature or land you control becomes a 4/4 Elemental creature with haste in addition to its other types until end of turn. It must be blocked this turn if able.
Jack-o'-Lantern 1Artifact {1}, {T}, Sacrifice Jack-o'-Lantern: Exile up to one target card from a graveyard. Draw a card. {1}, Exile Jack-o'-Lantern from your graveyard: Add one mana of any color.
Glittering Stockpile 2RArtifact — Treasure {T}: Add {R}. Put a stash counter on Glittering Stockpile. {T}, Sacrifice Glittering Stockpile: Add X mana of any one color, where X is the number of stash counters on Glittering Stockpile.
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