Answer:
I am a key that is playful. What am I?
The more you take away from me the bigger I shall get.
I roam through the lands hoping to rescue my love. I search high and low and will stomp on you if you get in my way!
I may be made of metal, bone, or wood and have many teeth. My bite hurts no one and the ladies love me. What am I?
Deposit red liquid in me.
When is it bad luck to see a black cat?