While the game features a bite-sized version of the TCG, it is primarily focused on collecting, as the game encourages players to open booster packs and collect every card possible
AR (Art Rare) cards retain a colored card border and use illustrated backgrounds for Pokemon, pulling 2-3 per 30-pack box at $2-$20 typical pricing
Note the reminder text after the Exhaust ability is described on the card: "Activate each exhaust ability only once." Not all Exhaust cards involve +1/+1 counters, although this seems to be a popular choice by Wizards
Keep an eye on announcements if you collect for value
The worst thing about this is that sinking feeling, knowing that the second your opponent plays it that they already know how they're going to win
You could make this deck work with the Poipole line, the Ekans line, or the Koffing line with a bit of tweaking, as long as youre running Nihilego and you can Poison your opponent