N/E PvE Build

Hi,
I recently swapped to N/E from N/Me to see how that worked and this is a build I've been playing around with in PvE that I thought I'd share as so far I've found it to be fairly powerful. NOTE: this is made soley using skills available from skill merchants so far. However I was wondering if others would take a look and help me finetune it or discuss their experiences with a similar build?

Attributes:
Blood 12
Death 12
Soul Reaping 5
Air Magic 10

Skills:
1) Vampiric Gaze
2) Life Siphon
3) Putrid Explosion
4) Lightning Strike
5) Lightning Orb
6) Air Attunement
7) Animate Bone Horror
8) reserved for SoC

I've left slot 8 for a SoC because I'm frantically trying to capture as many air spells as possible.

What should be apparent is that with the 5 SR and Air Attunement energy is never much of a problem, however I chose Lightning strike over javelin because of the 5 less energy cost just to help things tick over, as i found I wasn't using that interrupt on javelin.

You can take down a single targets fairly quickly with a chain of orb, LS and Vamp Gaze and then once a mob is down either animate a bone fiend or detonate a corpse with Putrid Explosion depending on how mobs are clustered.

Other skills I've considered including were Death Nova, but this proved tricky to execute well with any consistency.