@eddz99: Remember that time it cut through Yammy's Hierro?
Yammy's Hierro >>> Steel.
Gajeel's skin >>> Yammy's Hierro >>> Steel
Gajeel is not more durable than Yammy.
How do you you know that Gajeel's skin>>>>>>>Steel? if that was the case, than Rogue would not had been able to hurt him or even a Dragon in the current chapters. Natsu can hurt Gajeel and he doesn't possess the striking power to effortlessly destroy steel (with out flames) until he shows it.
What's next? Gajeel can't be hurt by Kenpachi? lol...
Byakuya uses Kido to end the fight.
Gajeel cannot be hurt by kenpanchi :3, lol really with the shadow dragon mode he is almost intangible
Kenpachi's own presence kills Gajeel by Reiatsu crush.
Kenpachi can cut through steel. SS arc Kenpachi>>Current Gajeel