Alternate EA Ballista Options

So, I was playing around with my EA Ballista. It felt lackluster and I couldn't put my finger on what was wrong with it. Took a look at the top EA Ballista Elementalist builds on Poe.Ninja that also use Mageblood and couldn't figure out why it just didn't feel right.

I realized that no one I could find in the top list was using Impossible Escape, but I figured it would open up some options for me, allowing me to manual spec Hired Killer and saving all the points on the chain to Watchtowers as I could now anoint it.

While fixing that, I took a quick look at my ascendancies to see if I should consider removing Bastion of Elements in favor of Shaper of Storms. That's when I realized when I was experimenting with Occultist last week when I specced back to Elementalist, I had accidentally bricked my build, by doing Shaper of Winter instead of Shaper of Flames. I'm an idiot.

That being fixed, all of a sudden I'm a god.

I'm curious if anyone has any good suggestions for replacement on my last medium cluster jewel. Currently using Cremator and Circle of Oblivion.

POB:

https://pastebin.com/1qC2zJTY

And of course, any thought in general on my Impossible Escape and next upgrade options. Only thing I can really come up with other than a better helm is maybe more powerful Eater or Exarch mods.