You mean the same guy who's scared to death of the Limbo clones, and wouldn't have been able to do anything to Madara if Naruto hadn't held it off? Sure. Continue to believe what you will, fapper. Honestly, you can be a fan of a character, but don't be a fool about another's when they are proven to be equal.
Oh, Sasuke didn't do anything to damage Obito at all, until the God Tree came out. Naruto was the one who took charge, and commanded. Hence Sasuke asking Naruto "What the next plan?"
Sasuke is useful for this particular event. If Naruto could have blocked MT on his own, you'd all be screaming "godmode" and "asspull".
He was scared? Lol. He was merely surprised as any one else would be. Plus, if he was, he wouldn't have analysed it and relayed the information to Naruto so quickly.
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And Sasuke played a part in the collaboration attack with Naruto.
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So yea, he did cause damage, although I agree that Naruto caused more damage with the Rasengan. That doesn't matter though, as Sasuke clearly caused Juubidara more worries than Naruto did. And, so? What if Naruto was the leader for the particular scenario? Minato mentions that "his son is keeping up with Sasuke".
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Key word is keeping up. Lol.