You can punish players by stacking ETB damage abilities like Warstorm Surge or Pandemonium, or you can get creative with Confusion in the Ranks and continuously exchange Norin for some of your opponents permanents
You can then recast it again and again, gaining more and more life with Aetherflux Reservoir each time until you're ready to blast everyone
Plus, since crewing a vehicle doesnt check for summoning sickness, you can make sure your creatures are pulling their weight as soon as they hit the field
Mila, Crafty Companion / Lukka, Wayward Bonder This is one of the more interesting MDFC designs just because its a planeswalker on one side
Maybe Rofellos, Llanowar Emissary, but even then its significantly more powerful than a typical mana dork in the right deck
Crunching numbers is their specialty