I am seriously hoping that at least one of the dark knight weapon skins looks like or similar to Zack's Buster Sword in Crisis Core. Man I loved that game... As for the actual topic at had, I'm not sure that warriors need any buffing. Since DRK is at least stated to focus on parry and evasion, it seems unlikely they'll have comparable damage to a warrior. If anything, I'd assume the damage dealt would be between paladin's slow slog and warrior's face murdering.