Answer:
Blade to blade I always win My foe laid low and even. Yard by yard through thick and thin I'm busiest in season.
I can be any color you can imagine. You see me in everyday life. Look around, you can probably see some of me right now. What am I?
In all the world none can compare I am a tiny weaver my deadly cloth so silky and fair.
I build up castles. I tear down mountains. I make some men blind, I help others to see. What am I?
I start with āeā end with āeā. I have whole countries inside me. What am I?
I am your mother's brother's only brother in law. Who am I?