User blog comment:Jopjopjop/Volume 19 Spoilers/@comment-77.253.101.192-20141125211715/@comment-1359322-20141126233852

Kiba already obtained the Blade Blacksmith since Volume 3, when he obtain the Balance Breaker for Sword Birth, he only started using it in Volume 10. And Kiba's newest power is the Demon Swords not Blade Blacksmith which Kiba also obtained in Volume 12, 7 Volumes ago. So Kiba hasn't had any new power in a while already.