You have used some good description and have a great structure Kaz, but your story does not always make sense.
In the second paragraph you use a lot of exaggeration to describe the Chimera as an almost unbeatable monster. Then without describing Riptide's powers this creature suddenly defeats Chimera. This is a little confusing. Next time remember to introduce both your lead characters with equal description and don't over exaggerate so much.
Kaz, This is a very exciting Hollywood action flick-style story. I can feel the pulse of the 9 trillion beating hearts. And, all of the hearts being chopped into pieces. Well done! Love, Dad