I think moonlight chain is very useful, even though I only have one point in it. It's the BEST lurer EVER. If you stand there for 3 seconds the opponent will come and try to combo you. Then you simply use holy shout+dash, sacred waves or some other skills that have short casting time. I can't remember how many times I tricked the enemy into attacking me lol
the damage is great if you max it. PLUS it doesnt juggle. Also it gives me an indication for casting another skill in the middle or right after moonlight chain. For example, I lock someone with moonlight chain, and if he's directly facing me, I cancel it by using moonlight pieces. almost a garanteed hit.