Cloud Key
3Artifact
Text
As this artifact enters, choose artifact, creature, enchantment, instant, or sorcery. Spells you cast of the chosen type cost {1} less to cast.
The musical sound of its turning triggers the tumblers of revelation.
Market prices
updated on 06/17/2026| Source | Normal | Foil |
|---|---|---|
| Cardhoarder | 0.02 tix | — |
| Card Kingdom | $3.99 | — |
| Cardmarket | €2.00 | €3.78 |
| CardTrader Buy | €1.25 | €2.90 |
| TCGplayer | $4.14 | $5.05 |
Trend · last 90 days · EUR
€1.25CardTrader market
61 offers · from €1.25 · avg €37.26 · max €2,039.62
Near Mint: 46 · Slightly Played: 15
Rulings (2)
The cost reduction applies only to generic mana in the cost of spells of the chosen type you cast.
03/19/2021To 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.
03/19/2021Legality by format
| Brawl | Legal |
| Commander | Legal |
| Duel Commander | Legal |
| Legacy | Legal |
| Modern | Legal |
| Oathbreaker | Legal |
| Old School | Not legal |
| Pauper | Not legal |
| Pioneer | Not legal |
| Premodern | Not legal |
| Standard | Not legal |
| Vintage | Legal |
| Block Constructed | Not legal |
| Extended | Not legal |
| Frontier | Not legal |
| Tiny Leaders | Not legal |