The "backstep" guard pass sequence in BJJ is extremely valuable to have in your back pocket. If you haven't already reviewed the basics of the backstep pass, you might want to do so before continuing here.

This tutorial will give three fundamentally different ways to get into the position, coming from a passing perspective at first, and then using the backstep to get out of a bad situation. One way to approach jiu-jitsu is to try to get pretty good at everything, but the approach I've seen work the best is to try to get to your best positions from the widest range of methods. This is just such an example.