Since there are already enough Inteleons to fit a schoolbus in the Pokemon TCG, it needs an easy differentiation in common parlance, and it just so happens that Shady Dealings is the key to some pretty great strategies
Also, like Losheel, you can make tokens instantly to draw each opposing turn too, only that's easier since so many token makers like Raise the Alarm are instants already, and lands will make tokens like Castle Ardenvale
Noxious Grasp could be something like Heartless Act if you wanted more cards for Mono-Red Aggro but its much weaker against Four-Color Midrange, which is the more difficult matchup
Iono, Professor's Research, Boss's Orders, Ultra Ball, Nest Ball are the staples that appear in almost every competitive deck because they solve the game's fundamental problem: you can't attack if you can't find your pieces
Theyre often 3050% cheaper than equivalent English cards bought overseas