Cloud Key card art

Cloud Key

Artifact MV 3

Tracked across real Commander games played through TurnZero HQ.

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What it doesCombosRulingsIn the 99Every version

What it does

As this artifact enters, choose artifact, creature, enchantment, instant, or sorcery.

Spells you cast of the chosen type cost 1 less to cast.

Combos with Cloud Key

Lines this card is part of — what it needs alongside it, and what the two of them do. An infinite result is the one that moves a deck's bracket.

Showing the 8 shortest and most explosive. This card appears in more than these — follow any of them through to Commander Spellbook to browse the rest.

Combo data from Commander Spellbook, the community-maintained database of Magic combos. Mirrored nightly.

Rulings

2 official rulings, in the order Wizards published them.

  • 2021-03-19

    The cost reduction applies only to generic mana in the cost of spells of the chosen type you cast.

  • 2021-03-19

    To determine the total cost of a spell, start with the mana cost or alternative cost you're paying (such as a flashback cost), add any cost increases (such as kicker costs), then apply any cost reductions (such as that of Cloud Key's ability). The mana value of the spell is determined by only its mana cost, no matter what the total cost to cast that spell was.

Rulings are Wizards of the Coast's own, mirrored from Scryfall and refreshed nightly.

In the 99

Every deck whose current list includes Cloud Key, whatever its commander.

Decks running it 7
Games played 0
Win rate — Fewer than 5 completed games — not enough to publish a rate yet.
Confirmed on board 0 Games where a board photo caught it actually in play.

Most played under

Commander Decks Games Win rate
Kilo, Apogee Mind 1 0 —
Tannuk, Steadfast Second 1 0 —
Urza, Lord High Artificer 1 0 —
Y'shtola, Night's Blessed 1 0 —

Colors it shows up in

  • Mono-Red 1 deck
  • Mono-Blue 1 deck
  • Esper 1 deck
  • Jeskai 1 deck

Every version of Cloud Key

10 printings, newest first. Prices are the market figures Scryfall publishes, refreshed nightly — a printing with no figure shows a dash rather than a zero, because Scryfall genuinely publishes none for some of them.

Prices from Scryfall, which tracks the TCGplayer and Cardmarket markets. They move daily and are a guide rather than a quote. Search TCGplayer for Cloud Key — a name search across every version, for the printings TCGplayer publishes no direct link to.

Aggregated from Commander games tracked in TurnZero HQ. Every figure counts decks and games only — no individual deck list, player or playgroup is identified. Win rates are withheld below 5 completed games, where the sample is too small to mean anything.