Here's the deal:
Chapter 478-479 are the ones that introduce Izanagi and explain what the technique is and how it works, which is the chapter where Danzou is fighting Sasuke. Those chapters came before chapter 510, which is the chapter where Tobi uses Izanagi against Konan.
Chapter 510 is the chapter everyone is referencing when they say 'Izanagi requires senju DNA' and they tend to completely forget about chapter 478 and 479.
Chapter 478, page 10:
Tobi: 'I see, no wonder, I knew there must be some secret that allowed a non Uchiha to control that many sharingan. Damn you Orochimaru, you must have kept in contact with Danzou.'
Chapter 478, page 11:
Tobi: 'It looks like he implanted the Shodai's cells (Hashirama) in order to boost his energy.'
Notice how he doesn't say 'He must have implanted Hashirama's cells to unlock Izanagi?' The link between Hashirama and Uchiha is the stamina/spiritual energy that Hashirama's cells have.
Chapter 478, page 14:
Tobi: 'It looks as if there are 10 sharingan, and the shodai's cells.'
Chapter 478, page 15:
Tobi: 'The powers of both the Uchiha and Hashirama, with them he can control the Kyuubi. He's after Naruto too.'
Chapter 478, page 16:
Tobi: 'No doubt about it, this is the dojutsu forbidden even among the Uchiha. Izanagi.'
At this point, Tobi has made it clear that Danzou did not acquire Hashirama's DNA and then have it implanted into his body so that he can unlock Izanagi. He did so to increase his stamina/spiritual energy so he could control the 9 tails using all those Sharingan.
Chapter 479, page 2:
Tobi: 'Izanagi, for the briefest of moment (a few seconds), the user can take disadvantages like wounds or even death and turn them into nothing more than a dream.'
Chapter 479, page 3:
Tobi: 'And then takes his own attacks and advantageous objects, and makes them real.'
Chapter 479, page 4:
Tobi: 'Complete control over one's own personal reality, the ultimate genjutsu meant only to be used on oneself. And afterwards, the eye of one who uses Izanagi will be stricken blind, and closes tight, forever.
Chapter 479, page 5
Tobi: 'But he's got a huge stock. There's a limit on how long one can use Izanagi. He must have let Orochimaru experiment on him to somehow force the technique to last longer.
This entire conversation amounts to Tobi discussing the way Izanagi works (it's an Uchiha technique that's forbidden), and how Danzou implanted Hashirama's cells to increase his spiritual energy and stamina enabling him to control so many sharingan.
At no point in those chapters does Tobi state that Izanagi REQUIRES Hashirama's DNA in order to work, or that non Uchiha require Hashirama's DNA to use Izanagi. It's a logical fallacy for anyone to assume either of those scenarios require Senju DNA.
Tobi also talks about the duration of Izanagi lasting only a few seconds, but Danzou managed to increase the duration to 1 minute per eye.
If Izanagi required Senju DNA, then it wouldn't be an Uchiha technique, and it certainly wouldn't be a forbidden technique, because the only Uchiha that would know about it would be Madara.
Obviously, at some point during Uchiha clan history, the technique was discovered, used, and deemed 'forbidden,' long before anyone named Madara or Hashirama was ever alive. Because of that, there would not have been any wood element release users who could have been around to provide senju DNA in order to 'discover' Izanagi.
Nope, it's completely ridiculous to imply that Izanagi requires Hashirama's DNA.
If that never happens, then we both know you're full of shit.
Chapter 478-479 are the ones that introduce Izanagi and explain what the technique is and how it works, which is the chapter where Danzou is fighting Sasuke. Those chapters came before chapter 510, which is the chapter where Tobi uses Izanagi against Konan.
Chapter 510 is the chapter everyone is referencing when they say 'Izanagi requires senju DNA' and they tend to completely forget about chapter 478 and 479.
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Chapter 478, page 10:
Tobi: 'I see, no wonder, I knew there must be some secret that allowed a non Uchiha to control that many sharingan. Damn you Orochimaru, you must have kept in contact with Danzou.'
You must be registered for see links
Chapter 478, page 11:
Tobi: 'It looks like he implanted the Shodai's cells (Hashirama) in order to boost his energy.'
Notice how he doesn't say 'He must have implanted Hashirama's cells to unlock Izanagi?' The link between Hashirama and Uchiha is the stamina/spiritual energy that Hashirama's cells have.
You must be registered for see links
Chapter 478, page 14:
Tobi: 'It looks as if there are 10 sharingan, and the shodai's cells.'
You must be registered for see links
Chapter 478, page 15:
Tobi: 'The powers of both the Uchiha and Hashirama, with them he can control the Kyuubi. He's after Naruto too.'
You must be registered for see links
Chapter 478, page 16:
Tobi: 'No doubt about it, this is the dojutsu forbidden even among the Uchiha. Izanagi.'
At this point, Tobi has made it clear that Danzou did not acquire Hashirama's DNA and then have it implanted into his body so that he can unlock Izanagi. He did so to increase his stamina/spiritual energy so he could control the 9 tails using all those Sharingan.
You must be registered for see links
Chapter 479, page 2:
Tobi: 'Izanagi, for the briefest of moment (a few seconds), the user can take disadvantages like wounds or even death and turn them into nothing more than a dream.'
You must be registered for see links
Chapter 479, page 3:
Tobi: 'And then takes his own attacks and advantageous objects, and makes them real.'
You must be registered for see links
Chapter 479, page 4:
Tobi: 'Complete control over one's own personal reality, the ultimate genjutsu meant only to be used on oneself. And afterwards, the eye of one who uses Izanagi will be stricken blind, and closes tight, forever.
You must be registered for see links
Chapter 479, page 5
Tobi: 'But he's got a huge stock. There's a limit on how long one can use Izanagi. He must have let Orochimaru experiment on him to somehow force the technique to last longer.
This entire conversation amounts to Tobi discussing the way Izanagi works (it's an Uchiha technique that's forbidden), and how Danzou implanted Hashirama's cells to increase his spiritual energy and stamina enabling him to control so many sharingan.
At no point in those chapters does Tobi state that Izanagi REQUIRES Hashirama's DNA in order to work, or that non Uchiha require Hashirama's DNA to use Izanagi. It's a logical fallacy for anyone to assume either of those scenarios require Senju DNA.
Tobi also talks about the duration of Izanagi lasting only a few seconds, but Danzou managed to increase the duration to 1 minute per eye.
If Izanagi required Senju DNA, then it wouldn't be an Uchiha technique, and it certainly wouldn't be a forbidden technique, because the only Uchiha that would know about it would be Madara.
Obviously, at some point during Uchiha clan history, the technique was discovered, used, and deemed 'forbidden,' long before anyone named Madara or Hashirama was ever alive. Because of that, there would not have been any wood element release users who could have been around to provide senju DNA in order to 'discover' Izanagi.
Nope, it's completely ridiculous to imply that Izanagi requires Hashirama's DNA.
Basically, until you go buy vol 53 in english, scan the pages where Tobi talks about Izanagi, and then upload those pages here, you're a ****ing retard for even bringing it up.1. You're a moron who doesn't know that you can buy a manga in a book store.
If that never happens, then we both know you're full of shit.