The monster continues to attack the rave master, but he's not giving up. He's just waiting for the moment when he'll be able to make the illusion "solid" . The explosion is powerful enough to kill the monster, but it won't be enough to stop the rest of the monsters from attacking him. The only way he can stop them is to stab the monster in the heart with a lance. The monster is so impressed by the explosion that he jumps up and stabs the monster with his lance, but the monster can't stop him.