I have SCH and SMN leveled and am fairly familiar with staff WS damage, so not seeing how SCH could pull that off. Though the magic WS do scale well with MAB, so possibly with GEO support they could push them that high. And that right there is most likely your problem, most jobs can do ridiculous amounts of damage with GEO support. However, I have personally seen BLUs pull off that kind of damage with no support whatsoever. That is what made me instantly think you were referring to BLUs.