After seeing this I wonder if there will be a reason to go battlemage over death knight with better necro support on krieg. Here’s what I came up with:
http://www.grimtools.com/calc/dVbK9pOZ
http://www.grimtools.com/calc/eZPdkmZ0
Replace ingenuity with sylvaria’s essence on beronath and arcane sparks with dread skulls. Resistance reduction is still king and with mindwarp having flat reduction (which is actually less than it shows on grimtools, I have one with 31 flat and asked for trade on another one, it had 25 flat), can’t even take manticore. The big differences are 20% absorb, 25% crit and mirror against -18-33% (depending on setup) aether resistance. How much resistance aetherials have on average?
Compared to Reckless Power or Fabric of Reality (for this build at least) Spectral Binding is extremely efficient, giving more flat aether per point, tiny bit less aether%, health and OA.
Edit: I guess this could be a better way (lose 25% conversion, relevant for arcane currents, and one proc): http://www.grimtools.com/calc/pZrGMxGN
It’s really hard to tell the better one, without even taking procs and devotions into consideration.