At the sight of Spike, Katara went still. Eerily still, in fact. Her blue eyes narrowed, face becoming little more than a hardened mask filled with quiet fury. Then Darla was there and, by the time she'd asked for names, Katara was already in motion.
One food slid forward, the other turned slightly to the side, and her arms rose until they were parallel with the ground. The holy water was coursing around them in churning, jerky motions before she raised both hands - palms facing outward - and shoved out - sending the holy water heading straight for Spike in a large wave. Next her head snapped in the direction of Darla and she smirked coldly.
"You're next," she announced, one of her arms moving to aim for the female vampire as she once more relied on her most practiced move - the water whip - and snaked the formation of liquid out in the direction of the blonde.