Quick Fix To Make Dark Knight more viable
I love Dark Knight's playstyle, and I don't think that many things need to be changed to make it stand out enough to not feel gimped choosing it in a raid. I could actually pick one thing that would greatly improve qol without making the job OP: give it LNC cross-class abilitied instead of MRD. From MRD we take foresight, bloodbath, and mercy stroke; none of which seem truly necessay. Switching to LNC would give us access to invigorate to help with our TP issues, keen flurry to add to our parrying ability, and blood for blood which would give us an offensive cooldown to give us something like fight or flight/berserk. While increasing damage taken may not be preferred in a main tanking role, it goes along with the lore of Dark Knights in the series and makes them different from the other tanks. Any input or discussion is most welcome.
Tl;dr give DRK LNC cross-class abilities to make it more viable/balanced with the other tanks.