Having our creatures create Roles serves two purposes in our strategy: the creatures not only generate the tokens that Ghireds ability can copy, they also act as the nontoken bodies that will eventually make use of that ability themselves
Reach is one of the better abilities in EDH, given how prevalent flyers are, and how the monarch mechanic becomes more relevant over time
The three-drop Mythic Rare synergizes with the Demon creature type, creating a unique mashup of vampires and demons
Thats a lot for two mana, and the fact that Spreading Seas replaces itself by drawing you a card gives it a reasonably high floor even if it doesnt end up messing with your opponent too much
Most of the defender creatures are commons and uncommons made for Draft, and the deck utilizes very few rares
Grabby Giant: Two pretty interesting effects on a Reach body makes this a viable budget pick