Answer:
The weapon of choice to create the biggest shock.
I fly, yet I have no wings. I cry, yet I have no eyes. Darkness follows me. Lower light I never see.
This is in a realm of true and in a realm false, but you experience me as you turn and toss.
The moon is my father. The sea is my mother. I have a million brothers. I die when I reach land.
My first is in blood and also in battle. My second is in acorn, oak, and apple. My third and fourth are both the same. In the center of sorrow and twice in refrain. My fifth starts eternity ending here. My last is the first of last, Oh Dear.
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?