I've been doing Drak'Tharon Keep (H) today and Novos gave me a really hard time. That was my third run and even I did not wipe a single time on my first two ones he bascillay annihalted me a few times today.
Anyway I tried different positions and found a way to reduce the number of mobs that get spawned by a wide margin.

I positioned my DPS and my healer in the spider room before his room and started the fight with my tank and then stayed in the corridor, still in los of my healer and DPS group.

What happened now was, that the crystal handler spawned really quickly and I had not to go through all the trash even they get killed quickly.

I think I only got one of those big guys and then just those four crystal handlers.

He still spawns the adds when the shield is down but it made the fight a bit easier for me.