I see no logic behind this, genjutsu alone is enough to stop gaara in his tracks, enton sword will slice & dice gaara's sand as well, & with sasuke's speed getting in for close range isnt a problem either.
First issue. You're saying Gaara is over Eien no Mangekyo Sharingan Sasuke implying, overall Gaara is a more powerful shinobi. This is false - Sasuke has enormous chakra reserves. Sasuke fought along-side Itachi against Kabuto and essentially held his Susano'o up the entire fight. When he returned to the battle-field against Madara and the Ten-Tails and hasn't shown any signs of chakra exhaustion. This means that Gaara can't hold up a drawn-out battle to tire Sasuke as it's too risky. Sasuke is well above Gaara in Taijutsu, can easily with his Mangekyo Techniques rival and probably surpass in the Ninjutsu section, and in Genjutsu he is almost unrivalled.
Amaterasu - you say Gaara can block it. We've seen it do well against Amaterasu but not Enton. In addition, the Sand was already in the location it needed to be to .. Sasuke shot it right at the sand. Now in a fight, he wouldn't shoot at the sand - he would shoot at Gaara himself. Gaara's Sand has shown no feats that imply that his Sand is just as fast, if not faster than Amaterasu. In addition, Gaara knew it was coming because Sasuke had his scarred Mangekyo Sharingan "turned-on". Eien no Mangekyo doesn't show those signs so Gaara can't prepare for Amaterasu. Let's not get started on Enton if Gaara can't compete with a simple Amaterasu.
Sasuke doesn't seem to have Tsukuyomi so I will move onto Susano'o. Gaara cannot compete with Sasuke's Susano'o. First, Gaara had trouble against a Yasaka Magatama from Madara [
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]. A Normal Susano'o Arrow would destroy the Sand.. add Enton Arrows which adds speed, precision and overall power to the Arrow sending it through Gaara's and the burn his body into the ground. Now you may say, Gaara pulled Madara who has Perfect Susano'o out of his Susano'o so why can't Gaara do it to Sasuke's. Well Sasuke can pull out his arrows fast enough for Kakashi's only counter to be Kamui and Danzo having only just enough time to use Izanagi. Gaara's sand cannot penetrate the Susano'o fast enough to effectively pull Sasuke out of his Susano'o. In addition, by putting his Sand on the offensive front, renders his defence weak and having a weak defence against a Susano'o user can be fatal.
However, let's say Gaara can somehow defend and attack Sasuke while having his sand move fast enough to fight any attacks Sasuke sends at him. Madara's Susano'o that Gaara with apparent difficulty getting into was at this state [
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]. Madara then releases his Susano'o to a higher-caliber [
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]. His Susano'o was a lot smaller in the first image. The second Susano'o was a lot larger and still didn't go into its second state. Madara is 179cm tall while Sasuke is 168cm. Their height is not too far off and Madara looks a lot larger compared to his Susano'o here [
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] than Sasuke does in this Susano'o [
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]. In addition to that, this was when Sasuke was already going blind due to Mangekyo Blindness from not possessing the Eien no Mangekyo. He was also exhausted from just attacking the Five-Kage Summit so we can presume now, Sasuke can pull out an even larger and stronger Susano'o. Some even speculate that he can use Perfect Susano'o..
Just in case you want to debate with the Third Eye. Gaara can't form it fast enough to counter Sasuke's Genjutsu proficiency and speed.
sasuke wins this obviously. his lightning attacks can get thru gaaras sand if it doesnt sossano arrow spam would fodderize it and what makes you tink gaaras sand is fast enough to block amaraterasu? sasuke is out of his league.
EMS Sasuke beats Gaara with mid-diff and that's me being nice.
QUOTE=FTG V2;9852421]Let me explain how Sasuke beats Gaara.
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^Now Sasuke's Susanoo has what Madara Susanoo doesn't have and that's "Susanoo Arrow"......this techniques so fast that Kakashi(who's one of fastest ninjas)couldn't even move out of the way and his only chance was to use "Kamui".
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^Now this attack doesn't just have an amount of speed that's nearly hard to Dodge, but also a force that can easily go throw Mokuton.
Now i am going to explain to you the different speed between Amaterasu and Enton.
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^Now the Railkage(who's the next to Naruto and Minato being the 3rd fastest Ninja in the world)need to go on his V2 just to counter the Amaterasu
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^CO even said "He's going to counter it with his "Shunshin no Jutsu" and this when he at his full speed.
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^Now Garra easily blocked Enton with his Sand.
Let's see....the 3rd fastest ninja need his full speed and Shunshin no Jutsu to counter Amaterasu speed, but Garra easily blocked Enton it with his Sand.
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^Garra's Sand couldn't even keep with Lee and this Lee just took his wights off only.
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^You can clearly see Garra's Sand can't even keep with Sasuke speed at the Final Chunin Exam's.
Amaterasu is way faster than Enton.....Garra wouldn't even move a single a hand when Amaterasu hit him in the face.
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^Sasuke has Chidori Sharp Spear.....he doesn't even need to come close to Garra to him with it.
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^Chidori Senbon
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^Chidori Nagashi......this even a better defense for Sasuke when facing against Garra.
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^Hawk Summoning
Sasuke without a doubt is stronger than Garra[/QUOTE]