The Mystic Eyes of Death Perception when activated allow the user view the world in lines and points. Its duration was a mere moment but if Zero could hit a point, the object would instantly collapse. The most important thing was that even barriers had such lines and points.
The Eyes of Death Perception was a starting point in this series. The next up was A tier and its final form was AA tier, Balor’s Eyes, which could actualize the death of the target.