that would actually make sense her using that because before sakura hit her she seem to have realized sumthin and what else could it have been but the fact she realized what their plan was. i think she used a clone and used the time to regain her chakra it woudnt make sense for her to be sealed at this point we still havent gotten back to the hokages and hago its a reason he wants them to perform his special jutsu maybe it will weaken her by cutting her ties to the infinite chakra pool she has also she has ying and yang release as well as all kekkei genkai's she has to have sumthin up her sleeve and i doubt she can be defeated as long as she has the shinobi alliance in her genjutsu