My guild got our first kill on Lurker last night. Second night of attempts. Not sure how many tries the first night but they only got him to 50%. Last night was 4 attempts. I'm the only shaman in the group so look for the water shield (a bubble floating around me.) or totems or lots of tornadow animations.

http://media.putfile.com/Ascendance-Lurker-Kill-30

a couple weeks ago we got solarian down too.
http://media.putfile.com/Ascendance-Solarian-Kill