Well, I don't have a Necro but this is what I have been going with...

With my monk (set as healing), I bring a hero MM, Searing flames Ele (supplemented with meteor or meteor shower), and a hero protect monk (usually with Restore condition elite).  I fill that in with two warrior henchies, usually an earth ele, and ranger.  Sometimes I switch out the Searing flames ele for my warrior with hundred blades (just because a love that skill with a zealous sword mod).

1)  MM hero - standard MM build with blood of master and healing circle

2)  Searing flames horsey =  Fire attunement, Searing flames, Glyph of Lesser Energy, Glowing Gaze.  The rest are upto you.  I carry a TURNED OFF meteor shower, mesmer interrupts, ress signet.

3)  Defensive paragon (16 command/12 leader/rest in tactics):

Incoming (well now that it's 3 secs it suckers, but nothing else is really better, maybe Anthem of Fury)
Stand your ground
They're on fire (to go with searing flame)
Anthem of Flame
Never surrender
Go for the eyes (adrenaline from spear)
Watch yourself (adrenaline from spear)
Signet of Return

For hench I use: 

Devona (fighter)

The dervish

The healing monk (not the protective one)

Sologon the healing paragon (synergizes with my defensive paragon)

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For Lightbringer farming I don't use Zhed, because of the 40% energy penalty.  In those cases, I use a sword Koss W/E with adrealine skills and ward against melee.

i usually run

1.  MM

2.  Searing Flames Ele (although im thinking of changing that cuz it seems the AI cant always do a good job with SF, i have to hold its hand sometimes)

3.  and a monk

then i grab a monk, ele, ele/ranger, necro hench

Im working on changing that up though.

Thanks guys, I'll try some of this out today as I'm stuck in the damn airport for the next 4 hours.

Free to me.  I'll make the company pay for it.