Naruto had entered Sage Mode ahead of time.
His gaze was cautious. "Obito's dōjutsu, Kamui, hasn't been a secret to me for a long time. But knowing how Kamui works doesn't mean I can counter it at will. I'd better play it safe to start..."
He formed hand seals in front of his chest.
-Ninja Art: Multiple Shadow Clone Technique!
Poof! Poof!
A dozen or so shadow clones appeared amid the smoke and charged at Obito, Rasengan in hand!
Obito narrowed his eyes. "Shadow clones. You want to use feints and sheer numbers to increase your chances of touching me, but I won't let you have your way..."
Whoosh! Naruto's shadow clones passed through Obito's body again and again. Obito kept phasing through them with Kamui, meeting every change with the same response. When he caught an opening, he released iron spikes from his eye and pierced the shadow clones one after another!
Whoosh!
Obito sucked himself into his eye, then appeared above and behind Naruto, throwing a wooden stake down at him.
Naruto smiled faintly. With a kunai in hand, he turned and slashed, knocking the wooden stake aside with a clang.
Obito's gaze sharpened. "So that's Sage Mode's sensory ability..."
Swish! Swish!
After forming hand seals, Naruto pressed both hands to the ground.
-Summoning Technique!
Poof! Poof! Poof!
Large summoning beasts appeared one after another amid clouds of smoke.
Obito swept his gaze over them. "Combined with the Rinnegan's shared vision, that leaves almost no openings to exploit..."
Whoosh! He sucked himself into his eye again and reappeared several dozen meters away from Naruto.
"Fine, then. I'll fight you head-on..."
He formed the hand seals for Fire Release as his right eye unleashed a Kamui vortex, the two working in tandem...
-Fire Release: Blast Wave Wild Dance!
Whoom!