Complex sentence: Starting in the May 2010 issue of "Teen Titans", a new back-up feature called "The Coven" began running tthe backup stars being Black Alice, Zachary Zatara and Traci 13.
Split into simpler sentences: Starting in the May 2010 issue of "Teen Titans", a new back-up feature called "The Coven" began running. The backup stars Black Alice, Zachary Zatara and Traci 13.