Ok so had to recreate the post on to this forum, lets see what happens
Instead of having damage over the boss, move it to the character. It could look something like this
Outgoing Damage Incoming Healing Incoming Damage
V
V
Character
The way they can scroll I would suggest having outgoing damage arching in a counter-clockwise motion, Incoming Heals scrolling down, and Incoming Damage Arching in a clockwise motion. This could fix the Ataru proc hit box problem because it would be over your marauder.
This is imo a very big problem because ppl are stuck playing anni while they prefer carnage.
So Devs., Take some time and look into this a lil more than just trying to fix small bugs while larger bugs such as this is an issue