Quote Originally Posted by Super5
If jounin level ninjas require at least 2 elements, then how could Gai be a jounin? Also, Rock Lee is completely screwed since he can't use ninjutsu at all. There is definitely a an overall basis for making shadow a "hidden" or "secret" elemental affinity since Itachi used it way back. Or it could be a combination of two basic elements like wood or ice. Or it could be a bloodline limit, who knows?

I think Kishi was thinking of this stuff ahead of time though. If you look back even to the earliest parts of the manga, Kishi was using the elemental circle in fights. Sasuke's blazing fireball didn't have any effect on Haku's ice jutsu. Kakashi used an earth jutsu (Tracking dogs) against Zabuza (who only used water jutsus). It's also heavily present during the Third's fight with Oro - Third uses Fireball; Second counters with water wall; third counters with earth wall.

They never said all jounin have two elements. They said "Most" jounin have two elements.
Also Gai specializes in taijutsu we all know that but, that does not mean he does not have ninjutsu or multiple elements. I even remember him doing a move where he had fire in his hands.

Also wood and ice elements are a fussion of two elements. Ice is water, and wind. Wood is water, and earth if im not mistaken. they are blood line limits not basic elements lol.