Answer:
The eight of us move forth and back. To protect our king from the foes attack.
A dragons tooth in a mortals hand, I kill, I maim, I divide the land.
who do you think you know but sometimes you don't
What is full of holes but still holds water
Voiceless it cries,Voiceless it cries, Wingless flutters, Toothless bites, Mouthless mutters.
People take me on walks and I run and have fun. What am I?