If something seems off, or there are more red flags than you could possibly shake a stick at, move on
Then you can cast (note "cast" not "play," so no to dropping lands) the top card of your library if it's a common card
In Search of Greatness Casting In Search of Greatness on turn two will set the tone of the rest of the match
Baldin, Century Herdmaster is another card on this list that changes how damage is assigned, along with a solid way to pump the toughness of your creatures
The Lost Caverns of Ixalan The Lost Caverns of Ixalan draft boosters make an interesting set, but if you miss your plays on turns one, two, and three, you're in big trouble with the aggressive 1 and 2-drops out there
They have a more natural feel