Magic Johnson and Larry Bird share a gritty, competitive laugh. Kevin Durant's decision to leave the Oklahoma City Thunder and join the Golden State Warriors in free agency has turned the basketball world on its head. The move created a new NBA superpower headlined by Durant and Stephen Curry, the winners of the league's last three Most Valuable Player awards, and joined by All-NBA stalwarts Draymond Green and Klay Thompson in a core of 28-and-under stars poised to keep Golden State — winners of the 2015 NBA title, runners-up in 2016, with a record-setting 73-win campaign in between — entrenched as championship favorites for years to come.