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 am a lunch money thief
I hide in a dark tunnel awaiting my time. I can only be released by pulling back. Once released I may do unstoppable damage.
What happens once in June twice in August and never in May?
What gets wetter as it dries?
What did the piece of wood say when he saw the screwdriver and screws approaching?