Tormentmancer ?
If I would use the torment runes I would only go 5 pieces. Necro doesn’t have a spammable heal on a short cd. I have the runes on my thief the radius is small probably similar to geomancy or any on swap type sigils. The duration is a nice boost though.
Sinnastor{Warrior}Sinnacle{Mesmer}Sintacs
{Thief}
Actually, could be interesting with Blood Fiend and Minion Master trait. A 16 second cooldown on a heal skill is fairly short, and that is a 16 second cooldown on two activations of “on heal” procs.
The rune has a 20s icd, meaning you can use it with consume conditions quite well. Does anyone know how many stacks and how long the applied torment lasts for?
http://wiki.guildwars2.com/wiki/Rune_of_Tormenting
2 Stacks of Torment AOE on heal.
Somehow, I do not think this will work with Blood Fiend’s leaching attack. My guess is it will only proc on consuming your fiend for a major heal. Consume Conditions will be your best bet. Well of Blood, too, will probably only proc Torment on the first pulse.
For Blood Fiend, it procs on both summoning and sacrificing.