The problem is the refraction shaders don't work since they render views on the surface of entities (mirror) is not supported in commercial edition, I just need something that blurs on top of what was already drawn.

For a global screen effect, I just have another view on top of the normal view which jiggles slightly and is transparent (which for some reason says only for professional edition but works in mine anyway). I'll still use it as fallback/low sys-reqs but I'll want to make a version which blurs the distance a bit and has fire/explosions cause this effect as well.