Originally Posted by Chidori
Oh. After re-reading the chapter I see that the only sacrifice is that he had to cut open his own stomach.
Wouldnt the other half of Kurama come out too?
I'm pretty sure orochimaru would have died from that gash if he hadn't transferred himself into the zetsu clone. So in a sense, he did sacrifice himself.
I don't imagine kurama's chakra was the first thing ever sealed within the reaper, especially if there was a mask that summons him hidden away before the decline of the uzumaki clan.
In the picture you can see 5 ghostly blobs coming out of his stomach. My guess is 1 was orochimaru's arms and the other four were the Kages. If he had wanted to, I think Orochimaru could have released a lot more than that. Everything else is irrelevant though.