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
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
Rory will resolve normally if cast from exile for any reason, not only if it was cast with its suspend ability
Grim just gets you value as you do your thing without being a do nothing when things are not going to plan
Clockspinning and Timecrafting both let us remove counters at instant speed for shenanigans
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