Essence Mods and combination of monster mods needs work

I just ran into a rare double essence Rhoa. It had:

Mana Siphon (Stand close or far away)
Bone prison essence (I think get out of the prison by damaging or dodge rolling because you'll take damage)
lightning expanding burst (there's a small circle that is the safe zone but the visuals on expanding circle effects is a little too hard to see)

Having 3 different circle modifiers on one enemy should be blocked from generating. There's too much stuff to play around with that. I can't reposition against a monster that's faster than me and be able to see the safe spot to stand when the mana siphon visual overpowers it.

Unrelated, but if the map has a boss in it, you should get completion as soon as you kill the boss. I killed the boss and every rare monster aside from this one and lost completion for it because of that.