mad bomber stays the same. because adding damage bonus will effectively make the bomb damage trinket even more useless(sprite already can make you have max) so i propose adding the the damage vs all enemies low penalty to the both parts of the chaos set. i know this isnt implemented yet because damage bonuses effect weapon damage. so that needs to change to negative damage vs. anything just means you receive more damage from there attacks while not effecting weapon damage and positive damage vs. is as it is now.
and maybe, if the negative damage penalty make chaos to weak, add asi or msi low to each part.
Or, give Mad Bomber damage high on both pieces, and remove or half the status weakness.