@soaringturkeys: The tails was apart of Obito arsenal. It was the host of them that wasn't apart of his arsenal. How else did he get them? He got by take them from their host. He always had them except for The eight tails and Kurama. That was the whole first part of the Atkatski plan. He had them and he put some of their charka in the bodies Kabuto had resurrected. That why the black rods was there. Yes they were defeated when Itachi beat Kubato, but only the bodies and not the tails beasts. Otherwise he wouldn't have been able to summon the Juubi, not without the tails beasts.
@PrinceAragorn1: No the six tails didn't withstand it, he had to go eight tails just to break out of it. He was trap inside of it and Naruto was about to go all nine tail on him. He was trap inside of shinra tensei. Go back and refresh your memory and read the chapter again. It is when he meets his dad for the first time.
@PrinceAragorn1: When that happened he only had one ability. And the six tailed didn't withstood his shinra tensei, he had to go into the eight tails just to break out of it. He has all of his abilities here, and those six guys are not on that level if Might Guy and Kakashi can take on them....and they are not on the level of Pein.
@Phoenix6000: No it doesn't matter, and that your problem think it is. That what trolls do. So if you meet them on here, then know that it does. They don't care about that. And no it was not quickly discovered.
@ComocYahweh: Yes he can. Anything that have charka in the justu he can absorb it. We saw Nagato absorb itachi Amaterasu. So don't see why not. And the fact it a jutsu called 600 billion paper jutsu. The word jutsu is in there. So that means he can absorb it.