What distribution of ATs was used?
Nosferatu can be very annoying if you have a primarily melee based team, much like the other AVs with Dark Regeneration.
Just about to fight Nosferatu on Invincible. I'm level 44. the rest of the 8 man team is 42-44. I'll let you know how it goes. 
Haven't reached him yet. Just half way through the mission.
Well, we had 2 Scrappers, one Tank, one Controllor, 2 Blasters and one Peacebringer and one which I don´t remember
Oh well, lokks like this guy isn´t made for your random PuG, eh?
Oh, and let me know how it went, Stryker 
Finally managed to defeat him, altho 2 of the team switched to Rads. Got him to half health before he started killing people. Then we switched. Went down pretty quick after that.
I think his self heal is mainly what keeps him alive so long lol.
Slows with -recharge work well against him (kinetics, rad, ice control to name a few). If you don't have anyone in the team that can help, try using a Crey pistol after he uses a self heal to slow down the recharge on it.
Octavian Vanguard
@ohmsEU and @ohms 2
Badging character: Bimble on the Union server, Badgehunter.com and City Info Tracker.
The team I did it with had 2 kinetics and 3 controllers (one of them a grav). We didn't have a problem during the first attempt till he started one shotting people and once one went down we weren't doing enough damage.
2 Rads sorted him out though. 
Well, we had no rads or kins in that team, if I remember right. But I guess, once in a while, you need a defeat.... just to come heroically back
Whenever someone asks me for help with Nosferatu, I bring my Ice/Ice Blaster and suggest they look for a Rad. As Ohms said, using the Crey Pistol on him immediately after the first time he pulls his heal off really helps. A set with very good slows and a set with good -regen, and he does go down fairly easily, although still takes longer than most.
Okay, just have to let out some steam here. Today, I got this wonderful mish to defeat Nosferatu... well, I knew he was hard, but oh boy... Well, first I went in solo. Level 43 EB (me level 40). Kissed the floor. I got invited to a team a little later and tried the mish again. Well, he was a level 43 AV now (no ptrobs with that, actually). So, we stormed in, a team full of 8 guys who wanted to take him down. After several deaths we decided to lower rep. Guess what... that guy was still 43. Well, 4 Shivans were out during that fight... nothing. After some more deaths, someone switched to his 50. After even some more deaths, when he sidekicked one, we finally managed to bring that guy down.
I dunno how much time we spent in there. Must have been more than an hour, I guess. Soo... is this right? I mean, it wasn´t a TF or trial. Just a normal mish handed out to me at 40. And with a full team of 8 we can´t do it? Even on lowest rep? Only with a 50? I´m so [censored] off about that, right now... That´s just plain stupid. You should be able to handle a mish with a team in your levelrange, or am I missing something there?
Don´t get me wrong. I like a challenge, but that was just plain stupid. Even Lord Recluse went down faster in CoV in that mish where you fight him (he was an AV then, too). I even was on a team that managed to take down Jurassik with only a tank and two scrappers.
Man, I don´t get that. Anyway... thanks to those guys helping in there
-- Helvetic Knight