"Shut up!" Willow growled at Xander, aiming her palm at him with the sole intention of sending a few magical bolts flying his way. It was then - in those few seconds when her attention was diverted - that she realized her mistake. She didn't even have enough time to turn around before Peter was sending her hurtling toward the ground. She slammed into the concrete an instant later, slowly rolling onto her back and doing her best to summon her magic to heal the deep gouges that ran across her palms, forehead, and knees from the contact with the concrete.
Then it was raining splinters and she shrieked, bringing her arms up to shield her face and erecting a quick, haphazard magical barrier to keep the other pieces of wood from piercing her skin. Drawing in a breath she screamed her rage into the night. Several nearby windows shattered from the sound and her magic surged outward and upward as she levitated into a standing position.
"Stupid move," she growled in Peter's direction before glancing to Xander, "and hate to break it to you, Xander, but the Willow you knew is gone. And no, she isn't coming back."
Then she disappeared, reappearing a heartbeat later directly in Peter's face. Grabbing him by his shirt, she yanked him close and shoved her fist into his stomach. Before she could unleash her magic upon him at such a close range, however, her black eyes widened... and flashed quickly to green before turning black once more.