If the opponent uses Typhlosion/Blaziken's Firestarter or Blissey uses Happy Chance and attaches an Energy, would that activate Shocking Tail? I'm leaning towards no, but if you want to play literally, it is technically coming from your "hand" And when it says "whenever your opponent attaches..." it makes me think it's meant to deal with more than just Flygon d (HP). Yes, this is a desperate and futile attempt to make this Poke-Body seem better than it is.