The goal is to set up a wing dodge. If your dodger can score from the wing then he can have at it. If not there will be a quick outlet and feed to the crease for the goal.
Strategically this play is good to combine with the 1-3-2 Topside Rotation Backside Sneak because if the defense reacts well and stops one of these plays they are probably giving space for the other.
The 1-3-2 Wing Dodge Backside pick requires good ball-handling skills and timing. Thus might require devoted practice depending on the experience level of your squad. For these reasons also makes for a good practice drill or shooting drill.
The ball starts with #2 up top.