Answer:
What word is a plural, but when you add an "S" to the end, it becomes singular?
What is pronounced like one letter, written with three letters. And belongs to all animals?
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.
Whoever makes it, tells it not. Whoever takes it, knows it not. And whoever knows it wants it not
At first, I am nothing. Add something to negate. Add again to oppose. Add again to find the time to draw. Add once more to find nobody at all.
What is so fragile that saying its name breaks it?