I agree with most things mentioned by the above posters, so you will find some similarities between their posts and mine.
My opinion
player bar
It has panic on it, so that makes it a 7/10 bar already thanks to the fantastic shutdown it provides. If you feel like you don't need the energy pain inverter is a fantastic skill to bring. For an overall damage boost you can also opt to bring either the ebon battle standard of honor/wisdom. Honor adds a quite additional damage packet to every type of outgoing damage your team members provide, wisdom when combined with fast casting allows for some extreme skill and damage spam. Your choice. Alternatively you can opt for something like "finish him!" to force a kill on a weakened priority target.
Shared burden bar
Its not bad, but personally I don't see a real need for shared burden.
I usually opt for ineptitude myself. Panic is mainly used to migitate the damage from spells, and you already have condrunum lengthening the cast time. Perhaps it is for snaring, but casters semi-ball up already due to EVAS, and don't kite out of an AoE hex like panic. so the elite feels underwhelming for me here. The command skills are fine.
The PI bar
Lets be honest here: It sucks.
You already have panic, thats enough shutdown.
In my opinion you bring either Panic OR PI, but NOT both.
Kill it off and replace with an e-surge with aoe damage, rupts, and command skills that are useful ( think e-surge combined with for example mistrust and cry of frustration. you already bring command on your other mes, so besides fall back I don't see anything useful to add. CTT! is not good in 90% of the GW areas, and personally I never found the partywide mending when below 75% health from never surrender useful at all.
The SoS necro bar
This one needs a focus, right now it tries to do to many things at once.
Focus either on spirits with channeling damage support fueled by soul reaping/spirits with resto heals/full MM, but not spirits+ minions. It is subpar to a devoted spirit or MM bar ( both who can bring prot utility, which you are unable to bring right now). The bar also suffers due to the lack of splinter. Even when you only have minions to trigger it is way to awesome not to bring.
Both A-rage and spirit rift are decent altough they might miss with rift a lot due to the 3 second delay.
Discord bar
Again it tries to do to many thing at once.
Leave communing spirits to the rits, and devote this character to minions as a whole. Kick out the bad single target discord in favor of aura of the lich or jagged bones ( or if you bring ebon battle standard of honor yourself take bone fiends+order of undeath if you are brave), and add the holy trinity of prots here ( soa+ps+aegis) since your team has no prots whatsoever, and will most likely explode versus some serious damage packets ( especially aoe ones).
Pain Of Disenchantment bar
I like pain of disenchant.
weakness is also awesome, and so is mark of pain ( combine it with your ebon sin for maximum effect), but I am unsure about barbs. You cannot really control minions as well as heroes, so unless you give every hero a spear you might not trigger it as often as you would like. Besides, in the 2 seconds it takes to cast stuff should be close to death. perhaps bring some more resto with things like Pwk and maybe life ( if not bringing the IV necro) for a party heal ( or spirit transfer to catch damage spikes, I cannot state enough how great of a skill it is, especially on a necro with unlimited soul reaping energy).
IV resto
Assuming you go full channeling on your sos, this can stay as a primary N/Rt healer. Be sure to combine icy veins with putrid bile from the MM manually for maximum aoe. I dislike weapon of warding however. We bring aegis for this. Perhaps a second spirit transfer.Replace life with something else if you bring it on the pain of disenchantment bar.
Dwayna dervish
Pure overkill.
Its not needed.
Energy should be fine on your team for most fights, bring power drain if not.
You need either more damage or more prots.
Whatever floats your boat really.
Personally you can put an Rt with offensive spirits here ( since I recommend to lose them on that necro), with either sogm, or ST with microƔble shelter for some party wide reduction ( you might want to lose the MM if you do this to get the maximum out of shelters protection).
General
Overkill on heals, lack of damage and focus on builds, and some arguable skill choices. You also might want to bring something like drain/shatter/rip enchantment somewhere. Pain of disenchant has quite a cooldown, and especially in harder areas you really want to remove pesky enemy prots whenever possible.
Hope this helped