Cloud Castle Builder and Demolition Girl

You ask how you might recognize me?
Well, I'm a cloud-castle builder!
This you could have heard, maybe
I spend sweet useless words all over!

I have a very important role,
that perhaps you should know.
It's up to me to unfold,
what sights to you the skies will show!

On the wind I fly, so high I sail.
In the skies my realities are found.
I move like an elf out of mythical tale:
feet firmly above the ground.

All of a sudden: I hear a dreadful rumour
of a mighty woman, a danger most grave!
I strive to be brave and to ward off the horror
though stricken with fear of this female.

One day, staunchly, I'll face the woman
blessed so with the grace of knowing how
from great heights to return a man
back to the ground