Hakuda Master: The warriors who use their body as a weapon. It allows the person brute strength and can overwhelm larger and seemingly stronger opponents. The masters of Hakuda are able to learn the deadly Ikkotsu which was seen being used by the Captain commander and it was able to destroy Wonderweiss' abdomen. Sokutsu, one of the deadliest of all is twice as strong as Ikkotsu and it completely destroys an opponent. Even a master at Hakuda cannot accomplish this skill so easily. However, they are the only ones who can learn the art of Sokatsu. Only Shinigami however can learn Ikkotsu and obviously Sokatsu.
In order to achieve Ikkotsu, one must write 2.5k words for the technique and spend 50 points for it. It can only be used three times before a one post cool down. Gradually, as you continue to use it the cool down increases a post.
In order to achieve Sokatsu, you of course must know Ikkotsu the parent technique first. Then you need 75 points and you must write a 7k training. It can only be used once every three posts.
Shunpo/Sonido/Hirenkyaku Expert: The ones with the expertise of this are the only ones beside the ones with the mastery of assassin who can follow shunpo/sonido/hirenkyaku with their eyes. They are also capable of the after-image technique, but can only make one tangible afterimage.
Enhanced Durability: The ones with Enhanced Durability have been shown to sustain injuries easily and come out finer than the expected outcome. Such as Urahara Kisuke when Hiyori kicks him in his private parts, he shows no visible signs of hurt at all and even shows Hiyori being the one hurt. The 8th Division Captain has also demonstrated enhanced durability being able to take a cero from the 1st Espada without any visible signs of damage.