Hey Fencers, perhaps you know the answer to this as my Google skills met it's match. I'm trying a caster shadow ES build with Ghost Reaver (through Life Leech gem) and the concept seems broken as the ES returns I get are sporadic at best and mostly only noticeable if I'm punctured. While my HP pool isn't that great you would think I'd see noticeable returns when my Arc is chaining through multiple mobs.
Is it simply a rounding issue or does one have to combine it with Vaal Pact to get the result that I'm expecting?