You mean Farmland Saga?
Getting on topic, while I like Roxanne's form to an extent, its function (if any) is not clear to me. Consider that function-wise, both Cassandra and Hysteria's forms appear to further their special traits/techniques. Although, I wish Hysteria's form kept that illusion/mirage elegance when she first attacked Miria. Getting back to Roxanne, I still believe there has to be a hidden ace in her form.
I just cannot imagine a technique copycat having a straightforward AB design.