Before now Kinsbaile Cavalier and Knight Exemplar were the only examples of cards that pushed in this direction, and while theyre undeniably powerful I really dont think theres enough to build a deck around, especially since there are very few token producers for Knights compared to types like Soldiers and Warriors
Otherwise, put a +1/+1 counter on that creature, then put the card back or put it into your graveyard
Im personally thinking of a Modern Infect storm build that made the rounds a while ago, playing off of tutoring up Venerated Rotpriests to the field as quickly as possible and then hitting them with as many Ground Rifts as possible
Predefined tokens are catching on in Magic, with Roles now joining Food, Treasure, and Clues in the growing well that Wizards has to dip into
Torment of Hailfire Torment of Hailfire is a way to turn a lot of mana into a win condition