Of course Sasuke was able to bring down Kirin in seconds. Lightning is already naturally fast and besides, Sasuke just guides it. And I don't understand the chakra reference because Kirin is pure lightning not chakra?
What chakra problems? He didn't catch Deidara with Sand prison though..He surprised
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and Deidara escaped because it didn't close fast enough. (
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What caught Deidara was sand from sand shield to which Deidara gives us an explanation saying the sand in his gourd is faster because it's infused with chakra unlike the
regular sand he brings up from the desert.
Again you're implying the desert sand he raised already had chakra infused in it which makes no sense as even the hyuga who can release chakra from their tenketsu have not being shown to expend chakra to cover such a distance. Gaara would logically need to be in contact with the sand to infuse his chakra in it but like I've said before, it only took seconds between noticing that strange bird and confronting Deidara to squash any hints of Gaara speeding to the desert, infusing chakra and speeding back to meet Deidara.
- Then we have the DB's description of Aerial sand bulwark saying "Not only does Gaara increase its defensive properties by infusing chakra into the sand" implying not all his sand constructs have chakra infused in them.
And we also have examples of Gaara manipulating obvious sand without chakra either side of the DB description you're bringing up and I ask again, do we simply disregard these other examples?