A new tank stance to fit Dark Knight better

[Dement]

Sorry, but if a hit can do more than you max HP before mitigation, you'll pop a mitigation cooldown anyway, and you'll also probably have Stoneskin, Adloquium and Sacred Soil.
Just look at the actual coil, no tank will stay there just eating the buster without anything.

It's like saying that Shield Oath is garbage if you have a Pampa boss with "25k needles" on a PLD with 22k HP and a WAR with 26400.

Your right, everyone will try to mitigate it but in an actual fight things don't always go as planned and this was just a simple scenario to highlight the problem. In progression Death Sentence killed plenty of people, Ravens Beak killed plenty of people, Bahamuts claw killed plenty of people and Flatten killed plenty of people, all one shotted against PLDs and WARs, the DRK would be at an immediate disadvantage because it's reduction is tail end..