Its card draw effect is shared with the table, so you can create multiple tokens, power existing ones up to start whittling down life totals, or both
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
Within these are a few double-sided cards, representing Summon spells, bosses, and Sidequests
So you should get an average of 40 rares/mythics from a draft booster box
As it is, some expensive cards are purely collector items now anyway.