Answer:
A precious stone, as clear as diamond. Seek it out whilst the sun's near the horizon. Though you can walk on water with its power, Try to keep it, and it'll vanish within an hour.
I am never quite what I appear to be. Straight-forward I seem, but it's only skin deep. For mystery most often lies beneath my simple speech. Sharpen your wits, open your eyes, look beyond my exteriors, read me backwards, forwards, upside down. Think and answer the question...
Describes a mysterious region and a stylish pair of shorts.
What five-letter word becomes shorter when you add two more letters?
A dragons tooth in a mortals hand, I kill, I maim, I divide the land.
I am rarely touched but often held. If you are smart you'll use me well. What am I?