I would change place on the 2:nd ravegore and striders + feral geist, and I think swamp gobbos are better for eLylyth then the feral geist. I would do the change since you don't really need anything but beasts at 35. And you have an abundant of fury controllers without 2:nd ravegore

Then i have no found memories of the blackfrost shard. They are kinda crappy. My advise is still to take a look at Nephilim bolt thrower. The pushing thing is really good, you can open lanes to casters, push stuff out of zones and generally just get target model further away from your stuff. One of my favorite things to do is to push trolls away from their Janissa wall so they loose 2 armor

Then it has about 50-50 odds to knockdown decently high def stuff(on feat and 2 boosted shots) that is nice as well.