CascadeCascade
Doubling Cube

Doubling Cube

{2}

Artifact

{3}, {T}: 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

Fifth DawnFifth Dawn#116·Rare·English
Nov 9, 2026
Market$33.05
Median$34.01
Buy on TCGPlayer

Legality

LegalCommanderNot legalStandardLegalModernNot legalPremodernLegalLegacyLegalVintageNot legalBrawlNot legalPioneer
LegalOathbreaker
Not legalPauperNot legalHistoric
Not legalTimeless

Rulings

Dec 1, 2004

Doubling Cube's ability is a mana ability.

Dec 1, 2004

The "type" of mana is its color, or lack thereof (if the mana is colorless).

Dec 1, 2004

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.