You say obito would of died without sharingan well I have to dissagree he only used ms on two occasions wich were when he ran through them all and when three of them tried to stab him but he used it to his advantage made the three of them all stab there comrade. Obito could of easily dodged that becuase he knew they wre coming that's why he made him self intangilble.
If obito didnt become intebile when the 3 ninja were about to stab him he would have had to jump out of the way. That means the ninja he was about to kill would have survived. Those were too many ninja for obito to handle by himself without his MS. his mokuton isnt on the level of yamato. He was creating little sticks to impail people, while yamato creates trees and huge logs to crush people.
Not even. Yamato is being used right not to power the zetsu army. Obviously his power is great. Also his wood stlye has been shown to already be superior to the tiny sticks obito creates in one arm.