That was it. The point of no return and Ernie wasn't looking back. His wand flicked a knockback jinx at Zacharias as he rushed toward him, fist balling and swinging in an upward motion for an uppercut to the other man's chin. He knew Zacharias wasn't helpless in defending himself with magic and he actually was counting on it. If he shielded himself from the knockback jinx then he wouldn't have time to stop the fist from connecting with its target.