PHOENIX — After his superstar two-way player hurled yet another gem, Dodgers manager Dave Roberts gave as spot-on a summation of Shohei Ohtani’s mentality as a pitcher as one could provide.“He’s literally trying to throw a shutout every time out there,” Roberts said after Wednesday night, when Ohtani whiffed six hitters over six innings, scattering two hits and walking one in his 10th start of the year.One look at Ohtani’s stat line — and his remarkable 0.74 ERA — and you start to see Roberts’ point.Aces are running wild in the National League this year, starting with Ohtani’s return to being a full-season starter. He is one of many top-of-the-line starters hurling their way into the Cy Young conversation. A dazzling May, where he allowed just three earned runs over 25 innings and limited the opposition to a .131/.223/.202 line has Ohtani firmly in the mix. But there are arguments to be made that for as dominating as Ohtani has been so far this season, Philadelphia’s Cristopher Sánchez and Milwaukee’s Jacob Misiorowski have been just as outstanding, if not more so.Or as The Athletic’s Jayson Stark put it recently: “I still think this is shaping up as the greatest NL Cy Young race ever. And the spectacular May artistry of Sánchez, Misiorowski and Ohtani has just elevated that race to a whole ’nother level.”