Exalted Trio Son Goten (BT7-009) - Assault of the Saiyans

[Permanent] Only 1 {Exalted Trio Son Goten} can be played in your Battle Area, and if you have a "Videl" card in play in your Battle Area, reduce the energy cost of this card in your hand and Battle Area by 1.
[Auto] When this card attacks, if there is a "Trunks: Youth" card in play in your Battle Area, this card gets +5000 power and [Double Strike] for the duration of the turn.