This list focuses on recursion synergy with units that really like coming back into play. Almost all of them enjoy having the killer battle skill in addition to one or more of deadly, lifesteal, overwhelm, endurance and/or ambush.
Xenan Temple helps you power up the devout, and simultaneously recruits an enemy for you to raise from the dead. Also,
Worldjoiner.
When you aren't killering or necromancing, you'll be playing a pretty standard midrange deck. Or, you'll be flooded.
The market needs work, and I'm sure the overall build could be better. Suggestions are welcome!