A reanimated Shinobi can never tire, has infinite chakra and can rejuvanate automatically if having taken damage. He brought himself back to life with the risk of being killed and having the very possibility of running out of chakra.
I shall explain that to you , when you're a living body you can use all of your power , however , in edo-tensei mode Madara wasn't using his full power , meaning that he wasn't strong enough and that he couldn't use his power in his full potential , plus , he couldn't become the juubi jinchuriki , Madara now that he is Alive , he can pretty much achieve his full potential and he also can become a jinchuriki and ofc , execute the infinite tsukuyomi ... i don't understand and these "fodders" (which they really are fodders) couldn't understand something that simple... i wonder , how will they understand the tobidara stuff.
