(As an example, don't bother adding four-star heroes until you've completed collecting the three one-stars you need and all of the two-star heroes.) I like systems and procedures to streamline complicated experiences, and MPQ lends itself well to that.
This is not a review of that game (or an advertisement for it), but rather my thoughts on how to make the most of the game as quickly as possible. The second is the addition of Marvel heroes and villains as placeholders of the various powers, attached to hit points that determine whether you win or lose. The first is the addition of 'powers' which change the gameplay or gameboard as well as providing a competitive defeat-your-opponent (rather than 'the board') objective. For the uninitiated, Marvel Puzzle Quest is a 'match 3' mobile game in the line of Bejeweled (or Candy Crush) but with two notable twists.