Is the ruling that any fig that has ME/ML at any one point in its dial has to be in your army, or is it that one figure must activley have on its slot?

I think you have to have it on your current slot.

A figure may lose ML/ME but can certainly be healed - that
is as long as your army consists of other figures with active
ML/ME abilities. Otherwise consider your play over.

It was posted to the Warlord Forum on the Wizkids site. I don';t know it it is in a public forum anywhere so I cant give you a link, but here's the ruling:

Yeah it reall is just that bad to be playing BPR.