This lets you play them before your opponent can answer them, something necessary if you want to come out on top against graveyard decks
Dragonologist Dragonologist does a little bit of everything you want early on: It digs for dragons, instants, or sorceries when it enters, and then once you start dropping your dragons, it gives them hexproof as long as they stay untapped
Homework Vesuvan Shapeshifter enters the battlefield, we choose a twice pumped Figure of Destiny as the object of copying
 + EVOLUTIONS OF THE DECK  avoid Poison if your playgroup gets salty about it or 2) embrace the salt, play Poison anyway
You get a ton of sizing, damage, and cards from Ms