What is Double Aqua Energy?
Double Aqua Energy is a Special Energy that was used in the Pokémon Trading Card Game (TCG). It has only been released once – in the XY Double Crisis set of 2015.
See also: What are Special Energy Cards?
The Double Aqua Energy card provides two water Energy but can only be attached to a Team Aqua Pokémon. The card design features two Water Energy symbols.
In the Pokémon TCG, a player can only use an Attack Move if the specified number of Energy are attached. This specified number generally includes one or more Energy that corresponds to the Pokémon type, and / or a number of Colorless Energy. Double Aqua Energy Cards provide two Water Energy.
Double Aqua Energy Card Text:
The text on the card reads:
‘This card can only be attached to Team Aqua Pokémon. Discard this card at the end of the turn you attached it.
This card provides 
Energy only while it is attached to a Team Aqua Pokémon.
(If this card is attached to anything other than a Team Aqua Pokémon, discard this card.)‘
Gallery
Double Energy Card 33/34 from XY Double Crisis
