A new dawn, new undercurrents!

In the original story, after Obito became the Ten-Tails Jinchūriki, his ability to phase through things stopped working because the Ten-Tails' chakra was too heavy, exceeding the capacity of Kamui, his Mangekyo Sharingan ocular jutsu...

But now, Yu used his right eye's He Transforms into an Antagonist to strengthen the causal link between Kamui and phasing, allowing the ability to transfer even the Ten-Tails' chakra!

"However, that ties the amount of time I can phase to the duration of my right eye's He Transforms into an Antagonist. There's a limit to how long it can keep strengthening a single causal link—about ten minutes."

"So I can maintain phasing for ten minutes, and that time is cumulative. Unlike before, the duration won't reset immediately as long as I stop before reaching the limit."

"After every accumulated ten minutes, phasing will temporarily stop working. I'll have to wait about an hour before I can use it again. That effectively means I only have ten minutes of phasing per battle."

"Still, it's better than losing it entirely. Combined with the ten minutes of risk-free Izanagi granted by my left eye's Causal Severance, I'll be absolutely immortal and indestructible for twenty minutes, no matter who I face..."

RUMBLE!!!

The meteor hoisted by the Thousand-Handed Dharma Form missed its target, but still devastated the ice!

Hashirama said, troubled, "It passed right through him. Back when the boy wasn't that strong, his phasing didn't seem so troublesome. Now that he has unmatched power, it feels a little unfair..."

Madara said, "Every ability has its limits. Just keep fighting!"

Whoosh! Whoosh! Whoosh! Whoosh!

Madara's and Hashirama's Susanoo unleashed a flurry of slashes... but every strike passed straight through Yu!

Of course, Yu couldn't let them keep slashing away like this. His eyes darted about, seeking an opening.