They could have just made Kabutomaru do it. He's mastered Edo Tensei a lot better then Orochimaru did. But then we'd have to go through all the crap of them being sealed and junk. It's still all stupid. And I still question the involvement of the dead Hokage. In the end it was still Naruto and Sasuke who save the day. Instead of showing the alliance backup Naruto and Sasuke they have to drag the dead Hokage from the graves like some bad fanfic where suddenly they are more powerful then when they originally were, minus like Hiruzen. This is when the war arc went to it's crappiest.
Originally Posted by Shneak
Parena or Serecham both equal Serena+Pancham!