Kryptonite has been found to contain trace elements of Chuck Norris roundhouse kicks to the face. This is why it is so deadly to Superman.
Chuck Norris Martial Arts Facts
Chuck Norris Science Jokes
Chuck Norris History Jokes
Chuck Norris Sports Jokes
Chuck Norris vs. Superheroes
51% approval from 601 votes
This is the card people see when you share the link.