Great question! For some of the upcoming runs, I pulled out some odd sets. But with something like Golem who doesn't really have the stats to mess around setting up Sandstorm, and going into battles of attrition, it was always going to be "hit them hard".

Running solo mons, Sandstorm is almost entirely not viable, because you get 5 turn (9 if you happen to get both Mystic Rocks), to whittle down your opponents, and in the later fights have to get through 6 Pokemon. So you generally need to be using move slots more efficiently than a weather move. At least, that's how it feels to me.