Its a sand spam core of  SD Excadrill and Z-Memento Alolan-Dugtrio. Like Excadrill+ Mega Chomp, Sand Force would give Alolan-Dugtrio a free LO boost, as well as weaken Excadrill's checks. Z-Memento could be used for 2 things: Create set-up chances for Excadrill, as well as heal Excadrill, letting it be played more aggressively.