After he had thrown his final pitch, escaping the only jam he faced in seven superb innings, Mason Edwards needed a little longer than usual to reach the dugout. There was a long line of USC teammates waiting to greet him. USC pitcher Mason Edwards receives congratulations from teammates after a dominant performance against Rutgers. Will Fosnot It was another night worth celebrating for the Trojans’ ace, whose dominance has been one of the enduring storylines of his team’s sparkling season. The junior left-hander’s latest gem carried No. 21 USC to a 5-1 victory over Rutgers on Friday at Dedeaux Field in the opener of a three-game series. After taking a no-hitter into the sixth inning, Edwards finally gave up a hit — and a run. But his sterling pitching line — he tallied 13 strikeouts along with the three hits and two walks he allowed — served further notice that he’s the guy the Trojans (35-12 overall, 17-8 Big Ten) will want on the mound in their biggest games.…