So as far as strategy goes I would definitely try and get Swampert onto your bench as soon as possible so you can utilize Wash Out, that way if you get a powerful Pokemon on your bench later and already have energy cards attached to other Pokemon you can move that powerful Pokemon into your active Pokemon spot right away without having to wait let's say four turns to get enough energy on it to attack you can just take four energy cards from your benched Pokemon and start attacking right away
However, with cards like Amethyst's Bruno Madrigal, Undetected Uncle and The Sorcerer's Hat, you can quickly set up a cycle that will not only gain you card draw but also lore
Pull rates are, in my admittedly too-small sample, horrible
Partly because his father asks him to free him, and partly since he's the Anti-Hero, it doesn't work, and Aster attacks
And I also have a blue eyes white dragon card thank you
But those are edge cases at the end of the day and at all other times, these rocks rule supreme