I can't think of anything else...
He may have been using an earth just when during the bell test for that technique were he pulls naruto under the ground. Theres a simmilar earth Juts called fish projection that the Rain ninja use in the Chunin exam.
So if I were to sum up the argument that Sasuke's affinity is fire, it would be this:
It doesn't matter that Sasuke has shown time and time again that he prefers to use lightning, he's an Uchiha so he MUST be fire. There is no way someone who is an Uchiha could have an affinity other than fire.
Just that Sasuke has amazing analytical ability, and the jutsu knowhow to adapt to nearly every situation.
Here's the problem.
"Main element" you assume to be analogous to "affinity".
I've said before... Affinity means nothing, it is only the "predisposed" element that a ninja finds "easier" to convert from chakra.
With training and time... an elite ninja can master more than one element, and Sasuke has done that with Lightning.
A ninja can DECIDE what element he/she wants to be their main-element.
And due to the situation of the battle... that can even change.
But it's a attempt to show WHY Sasuke would choose to beef up his Lightning arsenal with so many Utility Jutsu.
Makes sense though... doesn't it?
Okay lets settle this right here.
Sauske's elemental affinity is Cheddar but he learnt Edam as his second in order to counter Itachi's Cottage cheese Jutsu.
Until Kakashi or Sauske mentions otherwise im going to believe his affinity is fire, you can feel free to believe its lightning.
It could go either way until its stated in the manga or a data book, if anime say it doesn't mean squat though XD
How do you think Kakashi found out that Sasuke is the same type as him? You would think he gave him chakra paper and it crumpled. Sasuke's affinity is lightning.
We're concerned with primarily natural elemental/qualitative affinities, not original elemental/qualitative affinities in the argument. Additionally, fire is demonstrated as secondary to lightning in Sasuke's case (a la Kirin). With Kirin, lightning is the primary effect that Sasuke seeks. Fire was used as but a grand seal to complete Kirin.
Pretty ingenious, yes.
But i can't even fathom a way to make a jutsu attack faster than that.
Especially a Fire jutsu.
Sasuke only SPACIALLY CONTROLLED Kirin. (Albeit quite impressively)
He didn't convert any of the chakra for that attack.
Exactly my point. Thank you for following my lead this far.
It's arguable... and that exactly whats going on here. lol
In most likely a futile attempt to take the topic away from this pointless argument about captain emo, what elemental do you think someone like Shikamaru would have/utilize? His affinity is towards light/dark which hasn't been explained thus far so we don't even know if it realy is an element.
If light/dark is an element i personaly think he would choose to learn water as it carries various offensive and defensive qualities as well as the manipulation of water sharing a similarity to the way he manipulates his shadow. Thus making it easier for him to aquire and use.
If light/dark is not an element i think he would carry a natural affinity to earth jutsu. This is because of his clan and how they seem very rooted in nature and also how shadows are constantly connected with earth.
Here's my take on "affinities and proficiencies". Having an affinity to an element means one is aligned to that element naturally, I.E., born with it. Usually when a ninja learns an B-rank or higher jutsu, it is the same affinity that they are aligned to because it's easier for one to manipulate the element they are already aligned to. I.E., Naruto could not have learned Chidori without first gaining a lightning proficiency; the ability to manipulate his chakra into an electrical current.
A Proficiency with an element means that one has trained to gain the ability to use jutsu of that element, despite the fact that it is not normally aligned to them. Kakashi is aligned to Lightning, but proficient with water and earth thanks to years of training.
The Uchiha clan normally are aligned to Fire like Itachi, but Sasuke is aligned to Lightning, hence the reason he specializes in Lightning, as they are the most seamless for him to perform. Sasuke can use Fire seamlessly aswell though, because he trained himself since childhood to learn to do so, not because he is equally aligned to Fire the way he is Lightning. Born with Lightning. Trained in Fire.
Now, I'm sure that the reason Hashirama and Yamato can use Mokuton is because they're both aligned (not proficient) with Water and Earth. Kakashi is proficient with Water and Earth (not aligned), therefore he can't combine the two and create Mokuton.
Thus, Sasuke can't make a super Lightning+Fire jutsu, IMO. Then again, I could be wrong...Naruto and Yamato combined FRS and a Water jutsu to make a big combination jutsu. Though I also really think that there's a difference between a jutsu made of two elements, and a jutsu that combine two elements to make one new element.
But yeah, Sasuke's aligned to Lightning, proficient with Fire.
Considering Sasuke age when he mastered ALL of his Fire Jutsu, as well as the Sharingan to aid in the learning of the jutsu...
Sasuke has ALL the tools he needs to effectively learn ANY element if he puts his mind to it.
Kakashi IDENTIFIES with Sasuke.
He even tells Sasuke WHY he taught him the Chidori here:
It actually starts a page before that... but... thats the most pertinent part.