Need help with Amara build

as it stands, ive been using the elemental build (Fist of the Elements/Mystical Assault) with the Phasezerker build. It was pretty good in terms of CC during pre Mayhem 4, but now the build seems weak to me. especially when the Mystical Assault Remnant wont properly work (sometimes works, sometimes wont even activate).

I know one thing that helps is also the weapons/shields and stuff but even my best stuff atm barely puts a dent into regular enemies.

seems rather silly to have the elemental buff when Mayhem kinda nerfs that.

my current issue right now is health and weapons. i recently cleaned out my backpack, so i have few items to switch around. I am trying to farm for new things but even that is either taking a long time or no success.