Souleater's gotta make some sort of an appearance. They've gone through a lot of trouble to make sure every job has it's trademark attacks, even if they've had to tweak it a little, and Souleater (or Darkness as it was in the old days) is DRK's. My thought is it could be some sort of dps stance. Possibly similar to cleric's stance, but sacrificing vit for str. Something along those lines.