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
Viridescent Wisps GInstant Target creature becomes green and gets +1/+0 until end of turn. Draw a card.
Ashiok, Nightmare Weaver 1UBLegendary Planeswalker — Ashiok [+2]: Exile the top three cards of target opponent's library. [−X]: Put a creature card with mana value X exiled with Ashiok, Nightmare Weaver onto the battlefield under your control. That creature is a Nightmare in addition to its other types. [−10]: Exile all cards from all opponents' hands and graveyards. Loyalty 3
A-The Meathook Massacre XBBLegendary Enchantment When The Meathook Massacre enters the battlefield, each creature gets -X/-X until end of turn. Whenever a creature you control dies, each opponent loses 1 life.
Spirit Shackle BBEnchantment — Aura Enchant creature Whenever enchanted creature becomes tapped, put a -0/-2 counter on it.
Candles' Glow 1WInstant — Arcane Prevent the next 3 damage that would be dealt to any target this turn. You gain life equal to the damage prevented this way. Splice onto Arcane {1}{W} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)
Temporal Isolation 1WEnchantment — Aura Flash Enchant creature Enchanted creature has shadow. (It can block or be blocked by only creatures with shadow.) Prevent all damage that would be dealt by enchanted creature.
Mistform Mutant 4UUCreature — Illusion Mutant {1}{U}: Choose a creature type other than Wall. Target creature becomes that type until end of turn. 3/4
Grim Giganotosaurus 5BGCreature — Dinosaur {10}{B}{G}: Monstrosity 10. This ability costs {1} less to activate for each creature with power 4 or greater your opponents control. (If this creature isn't monstrous, put ten +1/+1 counters on it and it becomes monstrous.) When Grim Giganotosaurus becomes monstrous, destroy all artifacts and creatures other than Grim Giganotosaurus. 10/10
New New York Plane — New Earth At the beginning of combat on your turn, until end of turn, noncreature artifacts you control become 3/3 Vehicles in addition to their other types and gain flying, haste, and crew 1. Whenever chaos ensues, create a Treasure token and a 2/2 white Alien creature token.
Sengir, the Dark Baron 4BBLegendary Creature — Vampire Noble Flying Whenever another creature dies, put two +1/+1 counters on Sengir, the Dark Baron. Whenever another player loses the game, you gain life equal to that player's life total as the turn began. Partner (You can have two commanders if both have partner.) 4/4
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