Answer:
A single syllable do I claim black was my most famous name; Fetal to mortals here below thousands have I slain in a single blow.
I contain five little items of an everyday sort. You can find all five in a tennis court.
Man walks over, man walks under, in times of war he burns asunder. What is it?
I have green hair a round red head and a long thin white beard.
I row quickly with four oars but never comes out from under my own roof.
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.