Obito was utterly baffled too. How had his heart been pierced?
Could... Yagura have some technique I don't know about?
At that thought, Obito immediately used Kamui to leave the fight. He knew he might really die if he didn't deal with his heart now.
But... he had long since prepared a way to handle it.
Although Madara believed he had successfully brainwashed Obito, he had still placed a Cursed Seal on his heart as insurance.
The Cursed Seal's effect was simple: Obito couldn't hurt himself. Aside from that, it also allowed Madara to control him!
Obito had wanted to escape that control for a long time, but removing Madara's Cursed Seal was anything but easy. He could only do it with someone else's help.
But... Black Zetsu had been watching him all this time, leaving him no chance to find someone to work with.
Yet today... his heart had inexplicably been stabbed.
Although that stab hadn't destroyed the Cursed Seal... it had weakened its effects somewhat. Now... Obito could choose to destroy his own heart!
Unless Madara came back to life right this instant, no one could stop him from destroying his heart.
Obito acted on the thought immediately. He no longer intended to fight Yagura and plunged straight into the Kamui Dimension.
After entering the Kamui Dimension, Obito reached in without another word and ripped out his own heart. At the same time, he opened a Sealing Scroll and took out a White Zetsu heart he had prepared long ago.
He placed the White Zetsu heart where his original heart had been, and the powerful regenerative ability of the Hashirama Cells began repairing the damage.
"If the Ten-Tails were already revived, I could probably become the Ten-Tails Jinchuriki now..."
As he spoke, Obito took out another Three-Tomoe Sharingan,