Necromancer Decision

[zoso]

Is it worth it to play a DE Necro?

What I mean is: When Kunark drops, am I going to feel compelled to re-roll an Iksar and level it 1-60 because the Iksar regen overpowers Dark Elf?

From what I've read, it's not just an issue of "min-max"; it's an issue of necessity.

Does anyone have any insight beyond the Sesserdix guide that basically says, "If you aren't Iksar, you're doing it wrong mathematically"?