Probably the second-best 9-inning game ever pitched (ignoring context, such as strength of opponent, game's meaningfulness, park effects, etc.), according to
Game Scores, behind only Kerry Wood's 20-strikeout 1-hitter in 1998, supplanting Clayton Kershaw's 15-strikeout no-hitter last year. Wood's Game Score was 105, Scherzer's 104, Kershaw's 102.
Starting in 2012 he began to have over 200 SO per season and his WHIP the last three seasons has been insane.
Changed his mechanics, whoever helped him is a genius.