Cool, these are very informative tips.

I have never done FFRP before, and was often confused how it works.
I saw some comments about the nexus in the original post by happyturtle, sounds like it would be hard to pick up if all kinds are mixed there. (I'm making an assumption, maybe I am wrong.)
I think I am looking for something, I assume is more simple/consistent.

I liked the idea of the bleach one, and even came up with a character for it, who I am alright with being weak.
(after reading episodes 1-8 and some of their wiki)
But I can't find anything more recent than 2011(2014 if "[BitP:R2]" counts), so I assume they stopped.