The destruction of the justice league

This book is about when the justice league is in some trouble when they get weakened when they fought the destroyer and get hurt very bad. But when they get better they soon see that a new super hero comes to town. But when they find out that the hero is a white Martian in disguise. When they go into war with the white Martians a new superhero come to help but really does nothing but brag and boast.