I think I'm now starting to feel the suckiness of not having a tank in my group. I love my 5 shaman though, so I'm gonna keep going until they're 70, however... Does anyone have any strategies for 5 shaman to kill Arcanist Doan Scarlet Monastery Library?

I moved my healing totems to the back where he cannot AOE them, however, he keeps silencing my group (which SUCKS), and that Arcane Explosion hurts! -- I thought of spreading them out in the previous room, however, because of the walls/dividers in there, I'm having issues. Any suggestions?