Board Thread:Naruto Discussions/@comment-25409224-20140911175512/@comment-23887466-20140922221548

Well Since Naruto mentioned that Madara's Chibaku Tensei are bigger than before as well as Madara who said they are stronger this time. I believe that Tengai Shinsei are Chibaku Tensei created by Madara before his death and were only summoned in the 4th Shinobi World War.