Board Thread:Versus Debates/@comment-26636534-20180830184727/@comment-34194151-20190113145637

@JamesSenpai

The point, is, it was SHOWN that the more chakra you put into a genjutsu the MORE Complex and harder to break it is. HE busted out Tsykuyomi against Kakashi, manipulated the perception of time to 72 hours per one real world second, and put him into comatose. That left itachi visibily huffing and sweating.The more complex the genjutsu, the more chakra it requires. We have seen that he can also tone it down to 24 hours and less. He used Tsykuyomi against EMS Sasuke and Kabuto without manipulating time at all. He completely controls how much chakra is put in. Chakra control is much more fixed in comparison to the ability of a ninja to simply summon more chakra. Naruto's chakra control didn't magically improve when he summoned gamabunta. He put an overwhelming amount of chakra into the summoning.

What you said there ignores an important detail. Ephemeral is not even the canonical name for the  genjutsu he casts by using one of his ten fingers. Ephemeral is a name created by the games for the technique based on the usage against naruto. All Itachi said in the canon was that he can cast genjutsu through his fingers. At thirty percent of his original strength, he can only mould a limited amount of chakra. The diagram clearly shows you that the more CHAKRA you put in and manipulate, the stronger the technique, whether it's ninjutsu or genjutsu.

The chakra cost of the technique is DETERMINED by how much chakra Itachi decides to put in the first place. IT doesn't matter if the specific genjutsu he used against naruto only required 1 percent of his chakra ( that makes it even better), because If he is allowed 100 percent of his strength, he can OBJECTIVELY cast a more powerful genjutsu of his choice through the medium of his choice.

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