Dungeon build for necro tank optimised for HA oakensoul enjoyers.
Of course always adapt gear setup to your group needs.
This set is optimized for full medium armor DDs/oaken HA enjoyers so they can reach armor penetration.
You can swap tremorscale for magma incarnate if you dont need so much armor penetration
You can use blastbones for more ult generation or you can change mortal coil for mystic orb/boneyard/altar for additional synergy.
You have a lot of armor from Crimson set so you dont need to slot Bulwark.
On trash you want to have vateshran weapon and shield, on boss fight you can have mythic like Death Dealer's Fete or Bloodlord's Embrace or you can use tank weapon set from Dragonstar Arena