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
Imposing Grandeur 4RSorcery Each player may discard their hand and draw cards equal to the greatest mana value of a commander they own on the battlefield or in the command zone.
Nexos 1GCreature — Human Tyranid Advisor Strategic Coordinator — Basic lands you control have "{T}: Add {C}{C}. Spend this mana only on costs that contain {X}." 2/2
Shield of the Realm 2Artifact — Equipment If a source would deal damage to equipped creature, prevent 2 of that damage. Equip {1}
Torch the Tower RInstant Bargain (You may sacrifice an artifact, enchantment, or token as you cast this spell.) Torch the Tower deals 2 damage to target creature or planeswalker. If this spell was bargained, instead it deals 3 damage to that permanent and you scry 1. If a permanent dealt damage by Torch the Tower would die this turn, exile it instead.
Transgress the Mind 1BSorcery Devoid (This card has no color.) Target player reveals their hand. You choose a card from it with mana value 3 or greater and exile that card.
Hallow WInstant Prevent all damage target spell would deal this turn. You gain life equal to the damage prevented this way.
Return Triumphant 1WSorcery Return target creature card with mana value 3 or less from your graveyard to the battlefield. Create a Young Hero Role token attached to it. (Enchanted creature has "Whenever this creature attacks, if its toughness is 3 or less, put a +1/+1 counter on it." If you put another Role on the creature later, put this one into the graveyard.)
Opal Avenger 2WEnchantment When you have 10 or less life, if Opal Avenger is an enchantment, Opal Avenger becomes a 3/5 Soldier creature.
Kellan Joins Up GWULegendary Enchantment When Kellan Joins Up enters the battlefield, you may exile a nonland card with mana value 3 or less from your hand. If you do, it becomes plotted. (You may cast it as a sorcery on a later turn without paying its mana cost.) Whenever a legendary creature enters the battlefield under your control, put a +1/+1 counter on each creature you control.
Pyromancer's Gauntlet 5Artifact If a red instant or sorcery spell you control or a red planeswalker you control would deal damage to a permanent or player, it deals that much damage plus 2 to that permanent or player instead.
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