Boost Energy on Gardevoir

[Venusaur]

If I attach a Boost Energy to Gardevoir it does 30 more damage correct?

[Sensei]

Please be a little more clearer in your questions..be specific on attacks,which specific pokemon,etc... in your questions so there will be no confusion.:)

With that said,I`m assuming you are talking about the attack "Psystorm" on Gardevoir EX.Since the attack states "Energy" and not "Energy cards",attaching boost energy will do 30 extra damage as long as you have the correct amount/type of energies to do the attack.

`Sensei

Edit:Upon further checking,the Gardevoir from R&S has the attack "Energy Burst" which also states the same thing("Energy",not "energy cards") so that would do 30 extra as well.