The Counter/Parry styles don't match up against a highly offensive style like Rage (he'll just smash through them), and they are all but worthless against a Tank, as well (you can't counter or parry a shot which is never thrown). They do work marginally well against a moderately active fighter, such as an offensive War or Theatrics glad, though. Just do your scouting, and challenge those fighters with styles which are compatable (compatible???). I've had some success using Counter or Parry-x as an opening/standby style, and then switching to various other styles as the triggers are hit.