It really does look like the line from his hollow mask, and I would say it was done purposefully so. It looks to weird to not have been drawn like that on purpose, especially by Kubo. Though I would also say the "black energy" is really his blood. It looks like the energy from his own attack is rebounding off the sealed gateway and causing damage to Ichigo. Here's the page between the two that the picture is showing. The two middle panels specifically.
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512 spoilers are finally showing up.
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2nd part of that isn't really surprising.
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http://www.mangahere.com/manga/bleach/v53/c512/
whole lotta nothing, but shit will get real next chapter
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Ichigo is going to lose, or Juhabach isn't the final villain because I don't see how Bleach could be years left if one of those isn't true.
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Seems like Kubo is insinuating that Akon guy was finally able to get Ichigo freed from the dangai.
Hollow bringer mode as you guys said. I don't see how Ichigo can possibly do anything vs Bach right now. But eh, come at me Kubo!
man, with how much they avoided showing his face, I assumed he had a mask on or something.
What the lol
The whole chapter seemed confusing. Waiting on mangastreams translation.