User blog comment:EvanDude345rv5/Fairy Tail 333 Review : Ultear FTW !/@comment-5580383-20130605174741

Chakra and Reiatsu are no different, hell if anything in Bleach terms, it's just spiritual power within a human physical body and  Shinigmai and Hollows can be killed by strong enough physical attacks.

Food power on the other hand is different from both Chakra and Reiastu however  it doesn't make either side immune to those elements.

Luffy can only knock out people FAR weaker than himself with Haki. Natsu has shown to be on par with Luffy so that's not going to work and if you think Luffy can knock out Naruto in his current state or Tokrio, that's laughable in itself