Answer:
The weapon of choice to create the biggest shock.
Halo of water, tongue of wood. Skin of stone, long I've stood. My fingers short reach to the sky. Inside my heart men live and die.
Double my number, I'm less than a score. Half of my number is less than four. Add one to my double when bakers are near. Days of the week are still greater, I fear.
I have many feathers to help me fly. I have a body and head, but I'm not alive. It is your strength which determines how far I go. You can hold me in your hand, but I'm never thrown.
A dragons tooth in a mortals hand, I kill, I maim, I divide the land.
Often cooked as fillet, this meat comes from an animal that swims underwater.