Why is this the answer?

The answer is stapler because this very clever riddle uses exciting and powerful words to describe a common object you might have right on your desk at home or at school. A stapler is much more exciting than you might think when you look at it through the eyes of this riddle. Let's look closely at the different clues. The first part says, "With pointed fangs it sits in wait." This is a tricky clue because the stapler is not alive, but it does sit and wait patiently on your desk for you to use it. What are the pointed fangs? They are the sharp, metal ends of the staples waiting inside the machine. These little staples are the "teeth" that are ready for action. Then, the riddle says, "With piercing force it doles out fate." Think about what happens when you use a stapler. You have to use a strong push, or a "piercing force," to get the staples to go through all the pages. When you press down, you decide which papers belong together forever. That is what "doles out fate" means for the papers. The papers are the "bloodless victims" because they do not have any blood, but the sharp staple goes right through them. The loud *clack* the stapler makes when you press it down is its way of "proclaiming its might" or its strength. The last part of the riddle is the most important: "Eternally joining in a single bite." When the stapler is finished, the little metal staple bends underneath the papers. This hooks all the pages together so they stay as one group for a very long time. That is the "eternally joining" part. It does this whole process of deciding, piercing, and joining in one quick action, which the riddle calls a "single bite." So, this clever puzzle is actually painting a beautiful, secret picture of a handy and powerful office tool: the stapler.