Board Thread:Wiki Discussions/@comment-24861688-20140427192038/@comment-24851495-20140428033849

he can't use all of the elements because it hasn't been explicitly stated at all. and he cant use yin-yang or either alone for all we know because the truth seeking orbs aren't made from it, but rather can be added to it. read the section when obito first became the ten tails host, the 2nd realized that when he first used the orbs (before he gained control) that they could reform their reincarnated bodies. once obito gained control, he applied yin-yang release to the already existing orbs, meaning its not required to use the orbs, but only amplify them