She knew the cause of that disappearance, she thought that his 'Qi' reserve must have been depleted, but when he created another shield, she wasn't able to notice at first, but she did after her icicle attack was suddenly blocked by an unknown force. It was at that time that desperation set in.
Wanting to stop his approach, she began making ice lance grow out of the ground, right in front of his path, but Leon was able to swiftly maneuver his way to the side, as minutes passed, he continued getting closer and closer to her, maneuvering through all the Icicles that seeks to obstructs his way.
Now knowing that stopping was pointless, She began using her last remaining Frost essence to strengthen the ice double-ended sword's shaft in hand.
As soon as Leon got close enough, She swung it at him with her might.
The other sword end of her weapon moved with a blur, aiming for Leon's temple.