expertise will affect binding rituals , and if you want a spirit spammer hero go R/Rt with high expertise and communing , and with Oath Shot.
i don't know if the heroes use it well to say if it's going to work or not
Yeah - I've seen the Sabway 3-necro team and read all the comments about how it pwns.
It was in looking at the Dzagonur Bastion mission and reading the suggestion to bring a Rt, either primary or secondary to help keep the Whisper teams alive while I'm off capping the generals that made me wonder which would serve better - R/Rt or N/Rt. I have Olias and MoW, as well as Jin, so I could do either. (Olias would likely be my MM.)
I don't have GW:EN, so the 3-necro team won't work for me, much as it seems to steamroll PvE for people. (And no Pain Inverter to take out the Ele Boss in 3 seconds!)
I have hated this mission every time, though I have managed to get Masters for 2 of my 4 characters who have done it. I'm building a Survivor character (R/Mo) at the moment, half way to the 2nd tier, and the Ele Boss scares the h_ll out of me for this mission! I always bring heavy interrupts, both on myself and my heroes (I do strictly H&H), but all you need is one bad hit from that guy and the team is toast!
I haven't tried a Hero Oathshot Spirit Spammer - maybe I'll try that in the countryside, just killing mobs, to get a feel for it - see if it works well or not. If not, MoW or Olias as a hybrid N/Rt may be the way to go.