Guild Wars: Wreckingball (Necromancer PvE)
Offering of Blood*
Order of Pain
Animate Bone Horror
Animate Bone Fiend
Blood of the Master
Resurrection Signet / Hardres of choice
12+4 Death Magic
9+2 Blood Magic
9+1 Soul Reaping
Weapon with an enchanting part, armor of choice + Bloodstained Boots.
Your plan here is that being a MM is basically a matter of a couple of Animates + Blood of the Master, so why not be an Orders necro at the same time?
Note that this plan absolutely requires you to bring as many physical damagers as possible - warriors, rangers, paragons, etc. It should be even easier to arrange now you can bring Heroes. Note that Barrage + Order of Pain = good.
There's probably a nicer way to make this with some of the new Nightfall skills, but you may want to use it to go get those skills.