That's interesting...
I wonder if the Dark Knight will steal the Samurai's evasiveness from some older games, such as its Bladegrasp/Shirahadori technique from FFV and Tactics. That's one way you could make a more heavily armored tank be evasive. Less about dodging entirely and more about catching its foes's attacks and throwing them off balance.
I'd expect them to have a lot of life drain abilities, too.
