Cover and synopsis for Sword of Flaws issue 3
>After their confrontation with the ancient god Procrustus, He-Man and the Masters of the Universe push onward in their search. The ancient purple sword is mightier and more dangerous than they had realized, and they must do everything in their power to keep it out of Skeletor’s blue bony hands. Meanwhile, the Sorceress and Orko travel through time, all the way back to Preternia, in the hopes of discovering the origins of the violet blade.
I get the feeling this whole comic is just a retcon explanation for why Skeletor has a purple power sword since "power sword split in two" was abandoned after the first minicomics