Answer:
A dragon's tooth in a mortal's hand, I kill, I maim, I divide the land.
As destructive as life, As healing as death; An institutioner of strife, Just as prone to bless. It is all that is good, Yet with an evil trend; As it was the beginning of things, It can also be the end.
What has wings, but can not fly. Is enclosed, but can outside also lie. Can open itself up, or close itself away. Is the place of kings and queens and doggerel of every means. What is it upon which I stand? Which can lead us to different lands.
Gets rid of bad ones, short and tall. Tightens when used, one size fits all.
Round as a button, deep as a well. If you want me to talk, you must first pull my tail.
This food is a tortilla filled with cheese and sometimes chicken before being heated or cooked.