Board Thread:Theories and Speculation/@comment-3001903-20150829033326/@comment-26773508-20150926104132

Tangocharlie07 wrote: Its more likely that Deidara just didn't have the necessary elemental affinities required for the Kekkei Tota. You also have to consider that for something as mind bogglingly powerful as Dust Release, the affinity must also be at a godly level.

For eg. Sasuke's affinity towards fire was such that he was even able to modify Katon into Blaze Release, something that he could teach to even, say, Konohamaru, provided he has as strong an affinity to fire as Sasuke. Although there is the matter of whether it is only something that can be done with the flames of amaterasu.... But that's a different matter! As far as the manga goes, Blaze Release only applies to Amaterasu. During MS Sasuke's fight with Ay, Darui and C noted that Sasuke controls the shape of the Amaterasu flames with one of his Mangekyo eyes (I forgot which one). And since Blaze Release is simply shape manipulation of Amaterasu flames, he can't teach it to anyone else i.e. it's a Mangekyo ability.