2 Legendary cards in every packeach booster also contains at least 2 Legendary cards, including 1 Rare or Mythic Rare
Exiling milling is better than normal milling since the cards cannot be used again with flashback, disturb, reanimation, or check abilities like delirium or threshold
Even in a depowered deck, you can find Salt Marsh, Jwar Isle Refuge, Frost Marsh, and Secluded Glen to make the other colors in a deck built around The Mimeoplasm or something
Because of the synergies you want in these decks there are not many impressive, effective or powerful stand alone cards you are able to run
Just beware of the other players rage since they all know that you need to die before the inevitable death by poison arrives
Thats just pure white card draw, la Land Tax, and there are silly things you can do with sagas and other counter-based cards