Ok thanks! I was just making sure And actually I don't have it my neighbor does so I'm gonna go over his house and trade him something stupid since he doesn't play the TCG :biggrin:Power Keepers is a tournament legal set, yes. There's a list somewhere on the Pokemon Organized Play site, stating all of the usable sets and what the set picture (Seen in the bottom corner of the card) looks like if you don't know what set the card's from.
Assuming you had the actual cards, you could play them in a tournament (along with every other card in Power Keepers).