DeviantArt Page: http://jkuhl.deviantart.com/
"Whoever did this obviously did not know about the people of Boston. Nothing these terrorists do is going to shake them… For Pete's sake, Boston was founded by the Pilgrims, a people so tough, they had to buckle their goddamn hats on." -Stephen Colbert
I kite him around and drop the elemental totems or the searing totem. It is a huge pain, but it is doable.
Just solo Kael, keep his staff that grants silence immunity, use the staff, and tunnel void reaver down.