Board Thread:Versus Debates/@comment-30168027-20161030085406/@comment-30426414-20161210193318

@Vladosaurus @Princeharris1993 Thank you for the smart replies. We can't simply assume sasuke expended massive amounts of chakra to open that one portal. Moreover, we can't compare obito to sasuke. Obito had the mangekyo and little six paths chakra left, whereas sasuke has the rinnegan and a lot more six paths chakra. When sasuke was using amaterasu, susanoo etc with his MS, it was causing massive chakra drains, when he got EMS, he was spamming these techniques like it was nothing.

Kaguya had the rinnegan and was traveling through dimensions effortlessly (yes, traveling through dimensions is different from swapping dimensions) without any significant chakra drain and sasuke has the rinnegan as well, along with six paths chakra so it means that the chakra drain is not as massive as it would be for sasuke compared to a mangekyo user.

Kakashisologod wrote: Chapter 684 page 16.Go and read.Dont say it takes little amount of chakra.

This is chapter 684 page 16 There is nothing here that supports your claims. However in chapter 684 page 13:

Black zetsu states that whenever kaguya changes the time space of the world, it costs her a lot of chakra. Changing the time space and traveling through dimensions are two different things.

Kaguya has two abilities that allow her to traverse dimensions: Amenominaka http://naruto.wikia.com/wiki/Amenominaka#cite_note-5 This ability allows her to swap dimension aka changing the time space. This jutsu expends a lot of chakra.

Yomotsu_Hirasaka http://naruto.wikia.com/wiki/Yomotsu_Hirasaka This justu allows her to open portals into other dimensions similar to sasuke's portal jutsu. This particular techniques does not cost a lot of chakra to use.

If you want to provide evidence please post a link to said evidence. Don't make me go look for something thats not there :/

Edit: Upon further research I found that the space time portal actually does require a fair amount of chakra to use.

After using it in the gaiden, sasuke was unable to use his eye powers. However, in the boruto movie which was after the gaiden, we see that sasuke's use of the portal has improved as he was able to use ameno against kinshiki even after using his portal to enter kaguya's dimension. Therefore, just because sasuke used a portal to rescue naruto, doesn't mean his reserves were that low when fighting momoshiki.