Dark Knight's mitigation is little to nonexistent having to cross-role Rampart just to have one of the few cooldowns it already had prior to Stormblood in the form of Shadow Skin while Warrior has all it's previous cooldowns aside from bloodbath. Shadow Wall is on too high of a cooldown for the mitigation it provides when compared to Sentinel and Vengenace. The Blackest Night is clunky and has to be planned in such a way that it cannot be utilized to mitigate damage spikes outside of tank busters, and it drains MP Dark Knight is the only tank that has to give up damage dealing resources in exchange for mitigation.The utility is pretty straight forward when compared to the myriad of skills that Paladin brings and Warrior's Shake it off, Dark Knight's The Blackest Night is majorly behind.Then the damage is behind due to Dark Knight lacking buffs in it's combo rotations and inability to spam it's highest hitting attack unlike Paladin and Warrior.