Cloud Key
Artifact
FUTFuture Sight#160rare
The musical sound of its turning triggers the tumblers of revelation.
- Finishes
- Nonfoil · Foil
- Border
- black
- Frame
- 2003
- Illustrator
- Trevor Hairsine
CommanderLegalModernLegalStandardNot legal
Format legality
Constructed
StandardNot legal
PioneerNot legal
ModernLegal
LegacyLegal
VintageLegal
PauperNot legal
Commander
CommanderLegal
Pauper CommanderNot legal
Duel CommanderLegal
PreDHLegal
OathbreakerLegal
Tiny LeadersLegal
Arena
AlchemyNot legal
HistoricLegal
TimelessLegal
BrawlLegal
Standard BrawlNot legal
Competitive BrawlLegal
GladiatorLegal
Other
PremodernNot legal
Old SchoolNot legal
Penny DreadfulLegal
Future StandardNot legal
As this artifact enters, choose artifact, creature, enchantment, instant, or sorcery.
Spells you cast of the chosen type cost 
less to cast.
less to cast.Plays as:
Cost Reducer
Market · per finishtrend updated 10h ago · prices as of Oct 15, 2026
Nonfoil$3.63+0.8%$2.96 low$0.66 gap
Foil$21.380.0%$14.25 low$6.25 gap
Nonfoil$3.63+0.8%30DLowest listing
$2.96Buylist
$2.30Buy / Sell Gap
$0.66+22% · normal spread
30D range$21.38to$21.39Since Feb 2024:H $52.49L $19.29
Lowest listing
$14.25Buylist
$8.00Buy / Sell Gap
$6.25+44% · normal spread
Price history
last 30 days · set by the window above · each finish on its own scaleNonfoil$3.63+0.8%30D
30D range$3.57to$3.63Since Feb 2024:H $6.30L $2.34Foil$21.380.0%30D5.89× nonfoil
30D range$21.38to$21.39Since Feb 2024:H $52.49L $19.29Loading other printings
Found in
3 productsRounded oddsProductPriceNonfoilFoil
Future Sight MTGO Redemption
Box Set · —
—Nonfoil 1+ copiesFoil —Future Sight MTGO Redemption Foil
Box Set · —
—Nonfoil —Foil 1+ copiesFuture Sight Booster Pack
Booster Pack · $57.95
$57.95Nonfoil under 10%Foil under 1%
Combos
Rulings
2 · latest Mar 19, 2021
- WotCMar 19, 2021
The cost reduction applies only to generic mana in the cost of spells of the chosen type you cast.
- WotCMar 19, 2021
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.