Pits of quicksand can be found in various locations within the ruins of Nakkai, each inhabited by a large reaverbot known as Oyazan.

Though they are incapable of attacking directly, these high stamina reaverbots are able to spit out an infinite amount of Arijig from their mouths.

When defeated, an Oyazan will close its mouth and pinchers and retreat into the depths of its quicksand pit.