For individual cards and older booster packs and boxes, you will just have to gain a lot of experience and learn the nuances of real Pokemon products and then make educated purchases, ideally with a means of recourse if it turns out you were scammed (some kind of buyer protection program, etc)
What was the name of that poem
It is, nonetheless, a very very good play that most people would not have found unless they were explicitly exposed to it before, and even then they might not have found it (the casters didnt, for example, though they were quick to catch onto it as it happened)
1 Terapagos ex Easily the strongest Pokemon to come out of Stellar Crown is Terapagos ex
Marvel United: Multiverse Fin Fang Foom
To ensure victory, don't rush, avoid unnecessary risks, manage the opponent's board, and as soon as you get the chance, attack their life points