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
Khalni Gem 4Artifact When Khalni Gem enters the battlefield, return two lands you control to their owner's hand. {T}: Add two mana of any one color.
Restless Anchorage Land Restless Anchorage enters the battlefield tapped. {T}: Add {W} or {U}. {1}{W}{U}: Until end of turn, Restless Anchorage becomes a 2/3 white and blue Bird creature with flying. It's still a land. Whenever Restless Anchorage attacks, create a Map token.
Ormos, Archive Keeper 4UULegendary Creature — Sphinx Flying If you would draw a card while your library has no cards in it, instead put five +1/+1 counters on Ormos, Archive Keeper. {1}{U}{U}, Discard three cards with different names: Draw five cards. 5/5
Wondrous Crucible 7Artifact Permanents you control have ward {2}. At the beginning of your end step, mill two cards, then exile a nonland card at random from your graveyard. Copy it. You may cast the copy without paying its mana cost. (A copy of a permanent spell becomes a token.)
Gelatinous Cube 2BBCreature — Ooze Engulf — When Gelatinous Cube enters the battlefield, exile target non-Ooze creature an opponent controls until Gelatinous Cube leaves the battlefield. Dissolve — {X}{B}: Put target creature card with mana value X exiled with Gelatinous Cube into its owner's graveyard. 4/3
Time Machine 5Artifact {T}: Exile Time Machine and target nontoken creature you own. Return them to the battlefield at the beginning of your upkeep on your turn X in the next game you play with one of your opponents in this game, where X is the mana value of the exiled creature.
Ghost Ark 4Artifact — Vehicle Flying Repair Barge — Whenever Ghost Ark becomes crewed, each artifact creature card in your graveyard gains unearth {3} until end of turn. Crew 2 (Tap any number of creatures you control with total power 2 or more: This Vehicle becomes an artifact creature until end of turn.) 3/3
Fell Stinger 2BCreature — Zombie Scorpion Deathtouch Exploit (When this creature enters the battlefield, you may sacrifice a creature.) When Fell Stinger exploits a creature, target player draws two cards and loses 2 life. 3/2
Grim Guardian 2BEnchantment Creature — Zombie Constellation — Whenever Grim Guardian or another enchantment enters the battlefield under your control, each opponent loses 1 life. 1/4
Corrosive Ooze 1GCreature — Ooze Whenever Corrosive Ooze blocks or becomes blocked by an equipped creature, destroy all Equipment attached to that creature at end of combat. 2/2
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