PoE Cold Snap, Vortex, Occultist builds

Hello guys, I got this idea for an Occultist build inspired by the elemental dot buffs and the new chaos mastery revealed. I worked on this idea a few days ago, but the new chaos mastery reveal seems a pretty good fit for this build so, I included it in my build. Ok, a few words first. I want to point out that this build is not what someone would call "optimal", but it combines various features to create a beautiful result and what I would call a fun playing experience. If you 're fan of Torchlight, Grim Dawn etc. then you know what I'm talking about. So, what are the elements of the build?

Hi folks, so atm I´m PoBi´ing an Occultist and was thinking how good the defense layers in the title would work together. Malediction and Frigid Wake: 20% reduced Damage from hits Petrified Blood: 40% prevented (ofc there is the dot) Mom + Eldritch battery: 30% of dmg is taken from energy shield Fortify: 20% less dmg taken from hits On paper that sounds pretty good, but in reality I have no idea how this works all together. Can anybody help with the math?? Thx for your time mates! this is the POB so far, if u want to have a look