heel turn

The lady's step would then need to be drastically foreshortened, and would degenerate into a heel turn—not infrequent with beginners.

Undoubtedly my old diagram was wrong in omitting to show cusps for the heel turns: […]

More than any other episode to date, “The Last Of The Starks” heralds Daenerys’ heel turn. She’s been poised for it for some time, though the timing varies depending on the character perspective—Varys has always been ready to fly to another camp if he felt something was amiss or he just found a more viable candidate, while Tyrion [Lannister] and Jon [Snow] still want to serve her.