Nel, meanwhile, was thinking along similar lines, and was already in the process of ending out a hefty curaga to Grimmjow.

She then applied the same to Luppi.

The Arrancar were doing okay, for the moment, so she didn't need to step in for anything aside from a heal. Besides which, Ulquiorra would take umbrage with the insinuation that he couldn't manage, and Grimmjow....

This was Grimmjow's fight.

As for Luppi, she was not prepared to attack a healer who was simply defending herself.