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17 May 2024: Card library updated.

Doubling Cube

2 · Artifact

{3}, {T}: Double the amount of each type of unspent mana you have.

Similar cards

Color identity:
NameManaTypeText
Gaea's Balance 3GSorcery As an additional cost to cast this spell, sacrifice five lands. Search your library for a land card of each basic land type, put those cards onto the battlefield, then shuffle.
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The Fifteenth Doctor 2URLegendary Creature — Time Lord Doctor When The Fifteenth Doctor enters the battlefield or attacks, mill three cards. You may put an artifact card with mana value 2 or 3 from among them into your hand. The first nonartifact spell you cast each turn has improvise. (Your artifacts can help cast that spell. Each artifact you tap after you're done activating mana abilities pays for {1}.) 3/3
Emrakul, the Promised End 13Legendary Creature — Eldrazi This spell costs {1} less to cast for each card type among cards in your graveyard. When you cast this spell, you gain control of target opponent during that player's next turn. After that turn, that player takes an extra turn. Flying, trample, protection from instants 13/13
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