Seems simple enough but I am getting 2 different answers. Does demonic slash work with soul leech?
Yes. It's easy to test it yourself though. Go kill a critter with demonic slash, you'll get an absorb shield.
Bah! you were all right it was there all along. I actually don't see the shield (maybe b/c the DA transparent view) but there is an icon that popups in the upper right side that indicates the shield is active.