Perhaps it is just my Google Fu, but I am failing to find great examples that have more than 2 subtitles.
One example I did see that I personally like was to use a comma to precede the first subtitle, then colon, then dash:
MLA's rules appear to be that you use a colon for the first subtitle ...
It depends on the context you want to present in the text layout.
I am describing now purely on a descriptive base to decision, since you gave few information on the content details.
If you want to be plain and bold about the content, you need to be more specific with words (here 3 descriptive words "Pokemon", "Master" and "...