bleed Earthquake + transcendence + brass dome. need some help upgrading it

well, this build is kinda basic:
reduced duration earthquake, multiple DoT multiplier nodes, armour to mitigate elemental damage and 10 endurance charges to mitigate physical.

Dps is decent, and it's very tanky with only 5.3k life
my problem is that DoT from enemies can erase me if molten shell is not active.
other thing is that PoB displays a huge Dps increase if i use

but it feels very bad while playing if i use it...



this is my setup:



















this is the PoB for the build:https://pastebin.com/nhxTRMud

no awakened gems or alternate quality gems yet.
was thinking about not using blood magic, but i think mana cost will become a problem. maybe it can work with impressence, or -# mana cost jewelry, but losing endurance charges seems like a big downside.

any ideas? :)