Melding of the flesh lets you hit max resistances on all your res quite easily. Showing off a build that lets you bypass res and stack other defenses quite easily on top of it.
You can get 100% spell suppression, max block/spell block, high armor + decent damage.
I'm planning on adding overleech next to make up for its regen weakness vs bossing.
tldr of build is:
melding of flesh + mana reservation + purity = 90 max res
add other defensive layers
current char: https://pastebin.com/dMrBbK5v
https://pobb.in/kXaiHgrFBZXa