Chad's powers really interest me too. I just wish they would do more with him.
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For example, when he fought that awesome afro guy (>_>), he gets a new badass power with two arms. Then he gets owned by a current Espada. That really bothered me.
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Though I always like to image Chad's powers taking over his whole body to make him look badass and even more powerful. >_>
Eh, maybe Tite's got something up his sleeve.
I wouldn't be surprised if that happened eventually.
I want to know what happens when he destroys a hollow with those powers. I mean, shinigami cleanse them & allow them to pass on, Quincies just totally destroy them, but what about Chad's powers? What happens to the hollow's spirit when he destroys one? What happens in the rare event that Orihime destroys a hollow?