Garthanos
Arcadian Knight
And akin to Berserk.And yeh its definitely not just enabling that Warlord leader type after all a Champion with Berserk attack with Extreme Exertion or Brash Maneuvering as options I am thinking might be pretty damn badass.
Attack on the Run by spending a CS die and 2 additional extra attacks you may make subsequent attack affect adjacent enemies you pass as you move this turn. (You may choose to invoke opportunity attacks or not as though you disengaged as you pass to exploit Brash maneuvering). Basically converts an attack into a big assed maneuver. Still thinking about the economy of it but I think you must include an actual CS die as part of it no substitutes.