Sasuke let Naruto live at the end of VOTE and also didn't go for the kill with that clash neither wanted to kill each other at the end so why make a useless thread.?
Bee would have not got away if Sasuke never cut the tentacle off. But it was successful
It killed Danzo but yea like you said Izanagi saved him
3-4 well obviously absorption and a Juubi jin
Kaguya duh she's a god nothing works on her as of now.
By that scan Chidori pierced the tank(which is what is's suppose to do) and Rasengan blew a hole in it(which it's suppose to do) which is why people said Chidori=piercing Rasengan=brute force. After all Minato did copy it from a TBB.