Regular Sharingan for a Uchiha user takes no or little chakra to use.Originally Posted by Death BOO Z
As for the Earth-Lightning thing, yeah, I'm pretty confused about it as well. My science is really bad, but here's what I think:
First of all, that speed looks really fast (because it's light). Then, the obvious one factored here is the temperature...28,000°C. It can melt everything including the Earth's core made of iron (which is 5000°C). Of course, this fact might be wrong because Wikipedia isn't correct of all the time. Now that is a few thousand feet above us, so we don't feel anything from it. However, if you were to somehow convert it into Naruto version, Sasuke would be able to turn his body or chakra into a miniature-lightning technique that isn't as violent as mentioned on Wikipedia, but similar. Besides, because they weren't on the ground (unless the Clay Bird is accounted for), I guess you can say that Sasuke could have turned his own body into a Chidori so that he could neutralize the clays inside their body?Originally Posted by Wikipedia
Not really sure about this considering it's a bad 5-minute theory I came up with, but that's what I think (which doesn't make any sense, considering lightning is neutralized once it hits the ground).
Source: http://en.wikipedia.org/wiki/Lightning