Sacrificial Pit – how to use it correctly?

Hmm, what could be unusual about using a pit...?
Well, firstly, there should be a reason to build it, because the Necropolis has very little money and there's always something else to build.
Although increasing the Fury is a very good thing, I don't think it's worth killing your own units for it... except maybe Minotaurs, but that's for a specific tactic, and I haven't done it myself, although in principle, it can be justified.