Fixing Dark Knight, Properly

[Reynhart]

It's generally pretty agreed-upon that DRK gets the short end of the stick compared to the other tanks when it comes to their basic weaponskill combos. They have one fewer combo than the other two tanks, period, and they're the most heavily-penalized tank for using their enmity combo. And despite this, they're also more reliant on their combos for damage and enmity - DRK has no enmity-generating off-GCD like Circle of Scorn, Shield Swipe, or Onslaught

I'm not so sure about that. RoH of Halone is a pretty big loss in potency, and missing the MP return for Riot Blade will probably prevent you one cast of Holy Spirit during your requiescat window, or worse, not trigger the damage buff. DRK also have an obscene enmity multiplier on DA-Power Slash, to the point where you frequently don't need any more enmity combo throughout the rest of the fight even when stance dancing. Considering any tank should do one enmity combo right at the start to let their DPS burst without any issue, it's not really a penalty.

DRK does not have a +damage cooldown on a timer like Berserk, Requiescat, or Fight or Flight that they can use to 'hide' low-DPS combos in, and DRK has no way to 'make up for' any lost damage from their enmity combo, the way that PLD can use Sheltron to recover MP they don't get from Riot Blade.

No, but they have Darkside, a permanent (and now almost free) 20% damage boost. They're also the only tank that can increase the potency of their weapon skill, on top of having, on average, higher potencies that the other two tanks.

Apart from the lack of diversity in their weapon skills, I really don't think combos is where DRK get the short end.