Justice Society of America #35

As Kent Nelson struggles to figure out what Mordru did to the JSA, each of the heroes faces challenges designed specifically for him or her, including Green Lantern who faces the mage himself. Kent retrieves the JSAers from the pocket dimensions in which Mordru has imprisoned them just before Mordru's and Green Lantern's fight brings them back to JSA headquarters. Kent knows that Mordru can't work a spell if he can't focus, so he tells Lightning to hit Mordru over and over until they can knock him out. Green Lantern combines the universes into one and puts the wizard there for safe-keeping.