- 165
- 51
Scans why?
He shut off his sight.
He was sick,overuse of mangekyo leads to loss of light in one's eye(blindness).
It because Frog Mode Senjutsu is different..
In Order to Maintain Senjutsu Mode. You must Constantly absorb Nature Chakra. Since Minato in SM Mode He constantly absorbing Nature Chakra and It will constantly disrupt any Genjutsu. as Jiraiya and Bee said any flow of chakra disrupt can snap out of Genjutsu.
Obito was strong enough to use Genjutsu on 3rd Tail and Nine Tail. Yet he could not use Genjutsu on Minato.