Four seasons in, most TV shows are struggling to keep material fresh for viewers. They’ve often run through the major story beats they wanted to hit, coupled up the most enticing romantic pairings, and are looking for ways to keep the drama engaging and the story moving forward. Such is the constant dilemma of the medium, and yet a few series have navigated through those mid-series story bumps in successful ways. The Magicians is one of them. This is a show that feels as fresh as ever in its fourth season, and the whip-smart writers continue to …