A good referee in hockey will do multiple things throughout a game. One, they need to make good calls as a start. Making the right calls are always paramount to having a good referee be a good referee. Next is they have to treat everyone equally. No matter the jawning or the talk from one team or past transgressions, a referee has to judge the game impartially no matter what. A referee being impartial is paramount for a fair game being played, and also a good, entertaining game being played. The refs also has to be consistent throughout a game, making sure one call is called the same way later in a game. The referee also ideal explains reviews in a way that both the team players on the fans can understand. When they do that the game is Mark’s assemble and everything is more understandable for everyone to know what is happening