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
Samite Sanctuary 2WEnchantment {2}: Prevent the next 1 damage that would be dealt to target creature this turn. Any player may activate this ability.
Counterbalance UUEnchantment Whenever an opponent casts a spell, you may reveal the top card of your library. If you do, counter that spell if it has the same mana value as the revealed card.
Druids' Repository 1GGEnchantment Whenever a creature you control attacks, put a charge counter on Druids' Repository. Remove a charge counter from Druids' Repository: Add one mana of any color.
Poisonbelly Ogre 4BCreature — Ogre Warrior Whenever another creature enters the battlefield, its controller loses 1 life. 3/3
Arcane Savant 3UUCreature — Human Wizard Before you shuffle your deck to start the game, you may reveal this card from your deck and exile an instant or sorcery card you drafted that isn't in your deck. When Arcane Savant enters the battlefield, copy a card you exiled with cards named Arcane Savant. You may cast the copy without paying its mana cost. 3/3
Glyph of Destruction RInstant Target blocking Wall you control gets +10/+0 until end of combat. Prevent all damage that would be dealt to it this turn. Destroy it at the beginning of the next end step.
Gustcloak Savior 4WCreature — Bird Soldier Flying Whenever a creature you control becomes blocked, you may untap that creature and remove it from combat. 3/4
Sly Spy 2BCreature — Human Spy Whenever Sly Spy deals combat damage to a player, roll a six-sided die. That player loses life equal to the result. 2/2
Dolmen Gate 2Artifact Prevent all combat damage that would be dealt to attacking creatures you control.
Skymarch Bloodletter 2BCreature — Vampire Soldier Flying When Skymarch Bloodletter enters the battlefield, target opponent loses 1 life and you gain 1 life. 2/2
Page 382