Also here’s a quick little example of a phys mech with Zarkares and annihilation.
It’s a very free to play friendly mech as non of the items are legendary only. I have 1 energy engine equipped for protection against high damage energy mechs.
But if you do acquire rolling beasts I think this build is better because you are able to replace a plating with a resistance module.
Stat total build 1 (when everything is max mythed)
Heat capacity: 401
Enegy capacity: 282
Build 2 only has a little less hp (2022) but + 16 in each resistance and +1 movement.