Showdown in the Badlands Cards List & Guide
After a friendly Undead dies, draw a card.
"I see dead people. A LOT of dead people."
Cheaper, better, but more specific Cult Master. Not sure if that's enough to use it though. Synergizes with the hero power at least.
Probably not going to make the cut unless there are very cheap undead rush minions. There are seemingly better draw options such as Defrost.