Scherzer Under 102.5 Pitches -115 looks like a decent prop bet at 5dimes: He barely goes over 6 innings in a game (3 times pitched into the 7th in his last 10), in his last 6 road starts he never went over and in both his career games against LAD he didn't reach 100 pitches.
With ARI playing a road game, it's also not so unlikely, that his spot will be up to bat TOP6th and he will be replaced by a pinch hitter...and he wasn't overly impressive in his last couple of games. Looks like decent value to me (although it's a 100$ max bet).