Before their first home game following a long trip that ended with a miserable thud at Golden State, Cavaliers coach Tyronn Lue showed his team video clips to remind them who they are. ''Do that,'' LeBron James said. Kyrie Irving scored 26 points, James, his All-Star teammate, had 21 points and 15 assists, and Cleveland looked more like an NBA champion in a 118-103 win over the Phoenix Suns on Thursday night.