Answer:
Hoofed frolicking.
You can hold it without using your hands or arms. What is it?
An iron horse with a flaxen tail. The faster the horse runs, the shorter his tail becomes.
A dragon's tooth in a mortal's hand, I kill, I maim, I divide the land.
My first is in wield, sever bones and marrow. My second is in blade, forged in cold steel. My third is in arbalest, and also in arrows. My fourth is in power, plunged through a shield. My fifth is in honor, and also in vows My last will put an end to it all.
What covers its face with its hands, speaks no language, yet most known what it's saying?