I can't even imagine the horror of having DRKs have access to the Lancer skillset, namely because of Blood for Blood. I mean, it would be okay when you OT and even when MTing during the most laid-back of fluff moments, but pugging with DRK-tanks would be pretty nightmare-inducing after that.

That being said, apart from that sweat-inducing horror image, mild tweaks are indeed needed, TP issues one of them, Dark Dance getting a tweak, and then one more button to be pushed for more reliable physical tank buster mitigation. (Shadowskin and Shadow Wall have shite uptimes overall right now).