If I use Hypno's "Pendulum Influence" attack to use Mega Manectric ex's "Riotous Blasting" attack, can I do the extra damage even if I have only 1 Energy to discard?
Yes, Riotous Blasting has you choose whether or not you want to do the extra damage, and then you discard all Energy if you can. If you only have 1 Energy attached to Hypno and choose to do the extra damage, you would discard 1 Energy. Even if you were able to use Riotous Blasting with 0 Energy attached to your Pokemon, you could choose to do the extra damage.



