he didn't intimidate, but he was tough like the sedins, taking punishment to make plays and draw penalties. the guy made his career standing in the crease, you don't do that without being tough. he was also willing to dish out his fair share and got a hell of a lot of glove shoved in his mush over his career. it was often on him, to borrow a travis greenism, to drag the team into the fight.
it also takes mental toughness not to wilt in big games, high pressure situations. burr was as clutch as they come.