TmmyV I'm up for the weekly stuff, never tried nightfall. 27 Warlock. I'll add you.
Ended up having one more try on the last boss solo after we disbanded the fireteam.
Managed to kill him being stood behind that rock on the left hand side with a sniper. Just aim & shoot in the space of about a second, and sit back in there. The adds carried on with their barrage of fire but managed to survive it (just about) and get him down!
Did the nightfall with another 29 hunter and a 29 lock a little later. Killing Phogoth was a case of sniping him through a tiny gap in the door way from the room just before you start the boss. Took a while but ended up doing it.
The reward? Ascendant Energy.... -_-

On the flip side, Nightfall, Weekly and even a Daily all gave me Light/BEWARE. I then got a purple engram from a random mob and that became another Light/BEWARE. Getting slightly sick of seeing that name now 
