@aishen: Yes. At PRs I got a complete set of trainers. The numbers don't allow for a missing card. So unless it's some uuuuuuuuuuuuuuber rare, like, 1 out of every 100 boxes card, it's not there.
Haha, speaking of uber rare. XD When I was starting to open my packs, I was excited for the first pack. I'm thinking about Yanmega Prime, I'm thinking about Absol Prime. I rip it open and what should catch my eye but.... O.O The Alph Lithograph! I start to celebrate on the inside and then I think... wait... I will only have 4 prizes.... T.T I ended up playing it anyway, since the best cards in my deck were a 1-1-1 Victreebell line. (Twins was AMAZING for getting those out...)