USD
$29.86
USD foil
$27.49
EUR
€17.41
Doubling Cube
Artifact
, 
: Double the amount of each type of unspent mana you have.
"Freedom is the right of all sentient beings." —Optimus Prime
Double
Combos
Not part of any combo on Commander Spellbook.
Format legality
Standard
Not legal
Pioneer
Not legal
Modern
Legal
Legacy
Legal
Vintage
Legal
Pauper
Not legal
Commander
Legal
Oathbreaker
Legal
Duel Commander
Legal
Brawl
Not legal
Standard Brawl
Not legal
Historic
Not legal
Timeless
Not legal
Alchemy
Not legal
Penny
Legal
Premodern
Not legal
PreDH
Legal
Pauper EDH
Not legal
Old School
Not legal
Future
Not legal
Gladiator
Not legal
Rulings
- 2004-12-01
Doubling Cube's ability is a mana ability.
- 2004-12-01
The "type" of mana is its color, or lack thereof (if the mana is colorless).
- 2004-12-01
Any restrictions on the unspent mana aren't copied. For example, if you have
with no restrictions on it and 
that can be used only to cast artifact spells, you'll end up with , that can be used only to cast artifact spells, and that can be used for anything.