Answer:
What has a single eye but cannot see?
Different lights do make me strange, thus into different sizes I will change.
Autumn leaves and bad bowlers wreak havoc on this
I fly through the air on small feathered wings, seeking out life and destroying all things.
I cut through evil like a double edged sword, and chaos flees at my approach. Balance I single-handedly upraise, through battles fought with heart and mind, instead of with my gaze.
I go up and never come down no matter how hard you wish. As I get higher, more wrinkles crawl on to the face. What am I?