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
Lord of the Ulvenwald Creature — Werewolf Other Wolves and Werewolves you control get +1/+1. Whenever Lord of the Ulvenwald attacks, add {R} or {G}. Until end of turn, you don't lose this mana as steps and phases end. Nightbound (If a player casts at least two spells during their own turn, it becomes day next turn.) 3/3
Extinction Event 3BSorcery Choose odd or even. Exile each creature with mana value of the chosen quality. (Zero is even.)
Spell Burst XUInstant Buyback {3} (You may pay an additional {3} as you cast this spell. If you do, put this card into your hand as it resolves.) Counter target spell with mana value X.
Subjugate the Hobbits 5UUSorcery Gain control of each noncommander creature with mana value 3 or less.
Corrupted Roots BEnchantment — Aura Enchant Forest or Plains Whenever enchanted land becomes tapped, its controller loses 2 life.
Firemind's Foresight 5URInstant Search your library for an instant card with mana value 3, reveal it, and put it into your hand. Then repeat this process for instant cards with mana values 2 and 1. Then shuffle.
Sickening Shoal XBBInstant — Arcane You may exile a black card with mana value X from your hand rather than pay this spell's mana cost. Target creature gets -X/-X until end of turn.
Pact Weapon 3BArtifact — Equipment As long as Pact Weapon is attached to a creature, you don't lose the game for having 0 or less life. Whenever equipped creature attacks, draw a card and reveal it. The creature gets +X/+X until end of turn and you lose X life, where X is that card's mana value. Equip—Discard a card.
Gyruda, Doom of Depths 4U/BU/BLegendary Creature — Demon Kraken Companion — Your starting deck contains only cards with even mana values. (If this card is your chosen companion, you may put it into your hand from outside the game for {3} as a sorcery.) When Gyruda enters the battlefield, each player mills four cards. Put a creature card with an even mana value from among the milled cards onto the battlefield under your control. 6/6
Kumano's Blessing 2REnchantment — Aura Flash Enchant creature If a creature dealt damage by enchanted creature this turn would die, exile it instead.
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