
, : Double the amount of each type of unspent mana you have.
The cube's surface is pockmarked with jagged runes that seem to shift when unobserved.
Illustrated by Mark Tedin
Released on June 4, 2004
Doubling Cube's ability is a mana ability.
Any restrictions on the unspent mana aren't copied. For example, if you have {C}{W}{W}{B} with no restrictions on it and {U}{U}{U} that can be used only to cast artifact spells, you'll end up with {C}{C}{W}{W}{W}{W}{B}{B}, {U}{U}{U} that can be used only to cast artifact spells, and {U}{U}{U} that can be used for anything.
The "type" of mana is its color, or lack thereof (if the mana is colorless).





















