I used to love running BCNM fights. And they were not like ex primals which are very straightforward fights. BCNM usually had to be approached tactically not just learn a rotation and burn as you do it. Some were burns yes, royal jellies for instance, but most required tactics.

If they didn't outdate them every few months it wouldn't be such a big undertaking either.

A moblin maze monger type system would be great too, those were a hoot. To bad the NA groups usually only did them for exp, if you built mazes and completed objectives they could be really great.