Sand Reset clarification pt. 2

[Spheal says]

If you don't shuffle Pokemon, Supporters, Discard Piles, Hands, or Prize Cards into your deck, what do you shuffle? All energies and trainers attached that have been attached?

[PokePop]

Energy cards, Tools, Technical Machines... things like that. Yes, energy and trainers.
Oh, and Stadiums as well.