The Milwaukee Bucks, powered by a masterpiece from Greek forward Giannis Antetokounmpo, captured the franchise’s first NBA championship in 50 years with a 105-98 win over the visiting Phoenix Suns on Tuesday. With the victory, the Bucks clinched the NBA Finals 4-2 and became only the fifth team to win the best-of-seven championship series after losing the first two games. Antetokounmpo was named most valuable player of the series after scoring a playoff career-high 50 points in the clinching game that will surely soothe the Bucks’ recent history of postseason failure. “I’m so blessed to work with Giannis every day,” Bucks head coach Mike Budenholzer said during an on-court interview. “He’s a special human being, he’s an even more amazing human being than he is a player. I’ve learned so much from him and his leadership.” Phoenix overcame a slow start to the game and led by as many as …