Greninja & Zoroark GX (Secret)

Dark Pulse (30+)
This attack does 30 more damage times the amount of Darkness Energy attached to all of your Pokemon.

Dark Union GX
Put 2 in any combination of Darkness Pokemon GX and Darkness Pokemon EX from your discard pile onto your Bench. If this Pokemon has at least 1 extra Energy attached to it (in addition to this attack's cost), attach 2 Energy cards from your discard pile to each Pokemon that you put onto your Bench this way. (You can't use more than 1 GX attack in a game.)