User blog comment:Silver-Haired Seireitou/Sake Time with Sei - Can Arrancar Use Kidō?/@comment-3008090-20140414141056

Hmmhmm, well, I am glad that you asked Sei. Honestly, I have read some of the responses below, and there are some things that I do agree with and some things that I do not.

As I had stated before to a previous user, Arrancar and Shinigami share a similar, if not identical, physiology. This was proven when Uryu hit Cirucci Sanderwicci (or Chicken Sandwich, to me...just easier to remember) with his Seele Schneider where he assumed her Soul Chain/Sleep would be. This somewhat frustrates me, in that Kubo has made it clear that Shinigami and Arrancar share this similar physiology as well as a Zanpakutō (albeit the two are different embodiments of each power) without even explaining this in further detail. Apparently, to say that "a Hollow can remove it's mask and a Shinigami can put on a mask to gain the power of the other" is good enough for Mr. Kubo but it isn't enough for me (or logic, really).

Another thing that annoys me was Kaname Tōsen who had attained a Resurrección through unknown means (even though the hypothesis stands that it was a result of the Hōgyoku). Even if he did attain it through these means, why was it not explained in further detail so as not to leave the reader wondering and speculating as to why this was the case? Why be so elusive with the whole matter?

Let's also further analyze these aspects, as well. When a Shinigami dons a Hollow Mask, they attain the ability of Cero but when a Hollow removes their mask, they attain...Hmmm...Guess there is not too much to analyze here after all, unless you count the ability to, that is. Literally, the only difference between most Hollows and their Arrancar form is that they get to stand upright (Grand Fisher), although there are outliers. So, to answer Sei's question, I do believe that the Arrancar should have the ability to use Kidō.