#150: Genesis: Battle of Champions Biblically-accurate card back
Ex Pokemon Should Not Be This Rare According to the in-app Offering Rates chart for the most recent set, Shining Revelry, you have a 6.664 percent chance to pull an ex Pokemon, and a 0.74 percent chance to pull any specific Pokemon
Cards from home are encouraged, as well as utilizing the Pokmon TCGP app, but not required
But as Wizards points out, the format is in a very different place to where it was even a couple of years ago
You can aim to be like a combo deck and do as much stuff as you can and win with a big turn out of nowhere, you can be like a ramp deck mainly using elves and elf synergy as a means to ramp quickly, or you can be like an affinity style aggro deck that dumps out onto the board with alarming speed
So, hell turn to YouTube to do some research on the Pokemon and its attacks for inspiration, especially if no specific instructions were provided