Harbinger was an ugly mechanic, people just liked it because it dropped a lot of maps and you had your chance at fracturing orb(s). Think what was shown was really good overall, but their being adamant to keep breach walls in some regard is really, really annoying
I did harby with ritual, they went well together. Also, super juice 8 mod maps and run harby, drops lots of stuff.
I run harby every single league, I have no idea what im gonna do this league, its legit my only farm :|