No matter what style or color combination of Dragons you want to play, the deck comes with a legendary Dragon that will be perfect as your commander
Hammer is a great example of the perfect target
Look, Firesong and Sunspeaker can do silly things, but there's a lot of crappy deck lists flooding the internet right now that worry me, like suddenly every card that people would unanimously agree are utter trash in Commander are suddenly amazing because it's moderately good when their 6 cmc commander with no built-in protection against removal is on the table
(Our penultimate mythic, by the way, back here at #20)
These decks are usually slanted toward the middle of the aggressive/control spectrum, and they tend to play solid creatures and spells at most mana costs
Mega Heracross joins the lineup, and Seismitoad-EX made its disruptive debut