Tanking in DC universe online, all tanks had a plunge (actually all jobs in the game could plunge) and all tanks had a "shake it off" type ability that was aoe and worked on most everything ( though that was years ago so things may have changed since then.)

I feel like Shake it Off fits the theme of a tank, always pushing forward despite the damage being done, but if it don't work on stun then I think that needs to be changed.