This Human Knight creature is very similar in design to another great spell from Dominaria -- Call the Cavalry. It provided the same features except it was a sorcery. So this is basically a functional reprint that dodges non-creature counterspells.
Another advantage of making it a creature is an ability to bounce it back and play it again creating another token, which would be impossible with the sorcery spell. So all in all, this is a great upgrade to an already good card.