Dark Knight needs serious help

[PercibelTheren]

Each tank has its own lane. WAR's just happens to be extremely potent self-healing, which people believe to be far more powerful than it actually is because of the job's performance in non-endgame content. Conversely, DRK winds up being written off as bad because of its poor sustain despite all the other goodies it brings to the table. They are two different kinds of tanks, and so trying to compare them on a 1 to on 1 basis is already a bad start.

People who discount DRK have just never met a good one. A DRK who knows what they are doing will feel like they are barely taking damage in normal content.