How to Build a Rolled Batter 

to reduce the width of a wall it is common to use plinth bricks or you could tumble them if the angle is between 45⁰ and 60⁰.
The worst method is to simply step it in each course.
Here you can see the Rolled Batter, by simply adding a curved wedge cut to each end to start the roll and then following the line. This is basically a free hand method, using the level for plumb and only on the lower, longer courses for level.