Answer:
What gets sharper the more you use it?
With pointed fangs I sit and wait; with piercing force I crunch out fate; grabbing victims, proclaiming might; physically joining with a single bite. What am I?
Without me everyone would lose their head. What am I?
I am a type of animal that hang out in the mist
You can see it everyday, but cannot touch it at will. What is it?
When is it bad luck to see a black cat?