Zaishen Tonics

So I recently spent all my silver coins buying zaishen tonics because I wanted to become a ghostly hero The only problem with this is that I havent gotten it yet I did notice something though, and that brings me to my question. I used several tonics on Saturday, and everyone turned me into the avatar of balthazar. I then used several more on sunday and they all turned me into a guild lord. I ran out of tonics, but after looking on wiki I found out that there are only 7 reported forms for the zaishen tonic. my question is, does the form given from the zaishen tonic depend on what day it is?

EDIT: I guess Im just unlucky (or lucky depending on how you look at it)

I just used two tonics just now, and I got the Avatar of Balthazar and an archer. Maybe you were just unlucky.

Nope..........

i dont believe it depends on a day but I think the chances of getting the ghostly hero is really slim, ive used all my zoins on z tonics since the second week of the z quest release and have only gotten the ghostly hero form once D:

Most likely it's a matter of chance, as with mysterious tonics