Illustrated by Jeff Simpson Standard Not Legal Alchemy Not Legal Pioneer Legal Historic Not Legal Modern Legal Brawl Not Legal Legacy Legal Comp
A 2/1 and a 1/1 flier is already a great deal for 2 mana, but those tokens are artifacts, which opens up many more synergistic paths, and you often get more than just that first thopter from Loyal Apprentice
Now I dont think one need to be a maths expert to realize how much greater are the odds of getting the Pokmon you need with Pok Ball compared to the other 2, even if the other 2 are able to get other less useful Pokmon for the situation at hand
With regards to the colorless ramp, I've been in siduations where rakdos himself keeps getting removed from the board, so as much as I'd like to swap it for colored mana, I'd prefer to have the 99 self sufficient in my playgroup
That said, the Pokmon of the flaming hot variety have been hailed as some of the most powerful of all time