The lock on ability

Zero stood on one spot, with his eyes closed and his hand over the hilt of his weapon. His left foot was placed slightly forward as if he was in a position to strike at any moment.

Now, it was all up to Erin to hold off the celestial for the time being. She pointed her large great sword at the red being in the sky, and the first ring on her sword started to light up. The first skill activated, creating a large ice tunnel which shot out straight from her sword.

The attack was as powerful as it always was, freezing everything it touched, even turning parts of the moisture in the air around it into droplets of ice. Usually, whatever the ice touched it would freeze over, making it one of the deadliest skills in existence.