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
Niko Defies Destiny 1WUEnchantment — Saga (As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I — You gain 2 life for each foretold card you own in exile. II — Add {W}{U}. Spend this mana only to foretell cards or cast spells that have foretell. III — Return target card with foretell from your graveyard to your hand.
Pretender's Claim 1BEnchantment — Aura Enchant creature Whenever enchanted creature becomes blocked, tap all lands defending player controls.
Paliano, the High City Legendary Land Reveal Paliano, the High City as you draft it. The player to your right chooses a color, you choose another color, then the player to your left chooses a third color. {T}: Add one mana of any color chosen as you drafted cards named Paliano, the High City.
Leeches 1WWSorcery Target player loses all poison counters. Leeches deals that much damage to that player.
Wildfire Cerberus 4RCreature — Dog {5}{R}{R}: Monstrosity 1. (If this creature isn't monstrous, put a +1/+1 counter on it and it becomes monstrous.) When Wildfire Cerberus becomes monstrous, it deals 2 damage to each opponent and each creature they control. 4/3
Angelic Cub 1WCreature — Cat Angel Whenever Angelic Cub becomes the target of a spell or ability for the first time each turn, put a +1/+1 counter on it. As long as Angelic Cub has three or more +1/+1 counters on it, it has flying. 1/1
Mages' Contest 1RRInstant You and target spell's controller bid life. You start the bidding with a bid of 1. In turn order, each player may top the high bid. The bidding ends if the high bid stands. The high bidder loses life equal to the high bid. If you win the bidding, counter that spell.
Force of Will 3UUInstant You may pay 1 life and exile a blue card from your hand rather than pay this spell's mana cost. Counter target spell.
Power Leak 1UEnchantment — Aura Enchant enchantment At the beginning of the upkeep of enchanted enchantment's controller, that player may pay any amount of mana. Power Leak deals 2 damage to that player. Prevent X of that damage, where X is the amount of mana that player paid this way.
Sarkhan, Wanderer to Shiv 3RLegendary Planeswalker — Sarkhan [+1]: Dragon cards in your hand perpetually gain "This spell costs {1} less to cast," and "You may pay {X} rather than pay this spell's mana cost, where X is its mana value." [+1]: Conjure a card named Shivan Dragon into your hand. [−2]: Sarkhan, Wanderer to Shiv deals 3 damage to target creature. Loyalty 4
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