Mako had released a massive ray of green energy from his hands just as the giant Puffclaw was upon him and it was strong enough to push the Puffclaw back, burning its fluffy fuzz and tearing away its flesh, spraying blue blood everywhere and finally hitting the gem right in its abdomen.
Unlike the fuzz and the flesh, the gem was quite hard and didn't immediately disintegrate from the power of the green ray as the giant Puffclaw just got pushed back by the force of the green ray.
Bill and Iris were both shocked that Mako had such a strong ability that he had not shown up to this point and that it looked like it could almost one-shot the giant beast.
They watched as the green ray continued to push the giant beast back while continuously hitting on the gem. It looked like the beast would fall over at any moment but then all of a sudden, the ray of green light stopped pushing the beast back anymore as it stood its ground and even began to slowly take a step forward.
