Quote Originally Posted by Munsu
As a side note, since his fight with The Third, I really haven't seen him use all his great jutsus (to my recollection) like the reviving of the previous Hokages... anyone knows the reason for this?
Well, when the 3rd sealed oro's arms, he observed that the process would ultimately seal oro's jutsu. Now, we've all been lead to believe that this isn't the case when he took that other guy's body during the sasuke chase arc, and regained control of his arms.

However......why was oro sitting on his deathbed just prior to his confrontation with sasuke? He seemed to have been suffering similiarly to the shower scene when he was awaiting sasuke's arrival during teh chase arc, so maybe switching bodies did not in fact cure him completely from the side effects of the 3rd's seal.