A dangerous scorer punishes players and teams that do not defend properly
A dominant scorer baffles defenses and scores at will
Becoming a dangerous scorer is easy: develop offensive moves that you can make at a high percentage
Becoming a dominant scorer is just as easy, but few people know how. It is unbelievably simple:
The dominant scorer uses offensive moves in opposing pairs
By "opposing pairs", I mean that one move is a fake of the other. For example, having a good pull-up jumper makes you a dangerous scorer; if your defender fails to guard the pull-up, you will make them pay. But having a pull-up jumper and a hesitation dribble-drive makes you a dominant scorer; your defender cannot win - play the drive, and you pull up - play the jumper, and you blow right by for a layup.
Dangerous scorers can and will put up high point totals, but they also will get shut down.
Dominant scorers can be slowed, but never stopped.
This off-season, maximize training time by developing opposing pairs of offensive moves*. Here are some ideas:
Post players with a great hook shot: practice a fake-and-step-through (Hakeem Olajuwon made a career out of this, "The Dream Shake").
Three-point shooters: practice a pump-fake and escape dribble (Ray Allen has made a career of this)
*Even the smallest moves can be developed in pairs; e.g. crossovers vs. in-n-out dribble