Zabuza's demon shroud

[Masked man]

Hi,

can somebody tell me more about Zabuza's demon shroud?

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What is the point of this aura?

In the manga, some ninjas took their head and they weren't able to fight him, but had it similar effect to Kakashi?

I can't find anything about it on wikia.

Thanks.

 

[Expulso]

It's nothing. It just represents him as a demon

 

[YowYan]

Yeah, it's just for the dramatization of Zabuza's killer intent.

 

[Sasuke Uchiha Susanoo]

Gay fail jutsu.

 

[3MESSIAH]

what those above me said