Board Thread:Versus Debates/@comment-26636534-20160221130323/@comment-9782468-20160224034053

Guy broke though the TSB protection that Madara set up (Kakashi opened one side, Guy broke through the other). That same protection protected Obito from four Ten Tails Tailed Beast Bombs, and each of those bombs had the power to wipe out entire villages when shot from kilometers out. That's testament to Guy's power, and TTJ Madara's durability.

Also, if you were wondering when Sasuke's sword pierced Naruto's cloak, it was in Naruto Gaiden.