Bark at the moon (competition entry)

Under the light of the full moon I change  
I'm no longer me but a beast so strange  
I can run so fast, I'm powerful and strong  
Through dark woods all night I run  
So alive now, under these stars I belong  
I live to hunt and want to forever stay  
To prowl, to hear, to smell, to kill my prey  
Into fresh meat I want to sink my fangs  
To rip, rend, to tear in wild a killing dance  
In silvery light crimson blood I consume  
And the beasts, wolves bark at the moon