You could always blow ERW on the pull. I tend to do that because all my tries to use it reactively to produce some meaningful effect midfight have yielded... well... a second Blood Tap for when I want to AMZ right after I used Blood Tap on BS.
And that effect is comparatively small. It usually ends in that I actually forget about ERW.
Using it on the pull has helped a bit there. At least I used it, and I use it in a way where the gain from using it is fully reliable and perceivable, it gives me some added lead-threat. ^_^
-- (The Death of Rats, Terry Pratchett, Soul Music)