I got all 4 tank jobs to at least lvl 82 to see if my dungeon leveling can be smoother. DRK is such a disaster that I lost my interest in leveling for now.
PLD Holy Sheltron: 15% damage mitigation + regen
WAR Bloodwhetting: 10% damage mitigation + heal on hit + shield + short cd (25s)
GNB Heart of Corundum: 15% damage mitigation + heal when below 50% hp + short cd (25s)
DRK Oblation: 10% damage mitigation and that's it and it has long ass cd (60s) which is entirely inferior than what the others got.
2 charges makes no difference. Can't even pair with other defense cooldown because they are all mitigations that cannot stack. If Rampart or Shadow Wall can't save me, then this thing is even more useless then TBN.
All except DRK feels stronger and more tanky when I compare my dungeon runs with lvl 81 and lvl 82. DRK still feels the same and painful. Abyssal Drain cd is so long and weak cure potency doesn't really help in dire situation. Not to mention Living Dead makes no difference when I'm about to die in most situations. Many DRK turned a blind eye on the LD problems for many years, and DRK continued to get something so shi/tty.