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
Touch of Moonglove BInstant Target creature you control gets +1/+0 and gains deathtouch until end of turn. Whenever a creature dealt damage by that creature dies this turn, its controller loses 2 life. (Any amount of damage a creature with deathtouch deals to a creature is enough to destroy it.)
Grixis Illusionist UCreature — Human Wizard {T}: Target land you control becomes the basic land type of your choice until end of turn. 1/1
Instrument of the Bards GLegendary Artifact At the beginning of your upkeep, you may put a harmony counter on Instrument of the Bards. {3}{G}, {T}: Search your library for a creature card with mana value equal to the number of harmony counters on Instrument of the Bards, reveal it, and put it into your hand. If that card is legendary, create a Treasure token. Then shuffle.
Dread Defiler 6BCreature — Eldrazi Devoid (This card has no color.) {3}{C}, Exile a creature card from your graveyard: Target opponent loses life equal to the exiled card's power. ({C} represents colorless mana.) 6/8
Vexing Puzzlebox 3Artifact Whenever you roll one or more dice, put a number of charge counters on Vexing Puzzlebox equal to the result. {T}: Add one mana of any color. Roll a d20. {T}, Remove 100 charge counters from Vexing Puzzlebox: Search your library for an artifact card, put that card onto the battlefield, then shuffle.
Drogskol Reinforcements 3WCreature — Spirit Soldier Melee (Whenever this creature attacks, it gets +1/+1 until end of turn for each opponent you attacked this combat.) Other Spirits you control have melee. Prevent all noncombat damage that would be dealt to Spirits you control. 2/2
Phantom Flock 3WWCreature — Bird Soldier Spirit Flying Phantom Flock enters the battlefield with three +1/+1 counters on it. If damage would be dealt to Phantom Flock, prevent that damage. Remove a +1/+1 counter from Phantom Flock. 0/0
Slingbow Trap 3GInstant — Trap If a black creature with flying is attacking, you may pay {G} rather than pay this spell's mana cost. Destroy target attacking creature with flying.
Quirion Druid 2GCreature — Elf Druid {G}, {T}: Target land becomes a 2/2 green creature that's still a land. (This effect lasts indefinitely.) 1/2
Sanctimony 1WEnchantment Whenever an opponent taps a Mountain for mana, you may gain 1 life.
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