Answer:
A dragons tooth in a mortals hand I kill I maim I divide the land.
I am owned by the poor, the rich do not need me. If you eat me, you will die! What am I?
In spring, I am gay in handsome array. In summer, more clothing I wear. When colder it grows, I fling off my clothes. In winter, quite naked appear. What am I?
I have three feet but no arms or legs
I run around the city but I never move.
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.