Answer:
Hoofed frolicking.
I march before armies, a thousand salute me. My fall can bring victory, but no one would shoot me. The wind is my lover, one-legged am I. Name me and see me at home in the sky.
This is rectangular, hollow and has a lid, and where you’ll find it you might wonder, it is just six feet under. What is it?
I can be cracked, I can be made. I can be told, I can be played.
Forward I’m heavy, but backwards I’m not.
I am rarely touched but often held. If you are smart you'll use me well. What am I?