Just use the scar patterns. You shouldn't be getting attacked in pve, and in pvp the stronger nec armor gives negative armor vs holy, and smite builds are popular these days.
And an other question : for my blood/fire build, I do wonder if I take "Blood is Power" or "Life Transfer" in PvE ; the 1 or 2, maybe 3 fire skills cost in mana, so ..
In PvP Life Transfer lvl 18 is terrific, so I take this, but in PvE, ...
I s'pose you're a casual PvPer... most necros who use Life Transfer are fans of the random arenas. Know that Life Transfer is useless in PvE, but since you have no curses, cycling it with Life Siphon is probably your best bet at regen.