Just having a choice between the removal mode and the token mode is a pretty good card, and those are the two modes you'll use the most -- but having the other two makes it even better
Many of these creatures have powerful secondary abilities including creating additional creature tokens (Bladewing, Death Tyrant, Feldon, Kari Zev, Krenko, Mardu Strike leader), drain/life loss (Calculating Lich, Hellrider), direct damage (Combustible Gearhulk, Dreadhorde Butcher), anthem/buff effects for your army (Drana), card draw/free spells (Etali, Florian, Garna), additional combat step (Moraug), and many more
One only needs to look at the prevalence of OP06-101-o-nami to see how good Banish can be
If you want a second easy path, Krenko, Mob Boss is another classic starter option, though the Krenko decklist ranked up above is tuned for cEDH
For casual play, what are the best cards from the set