I always overestimate the bosses I never try status ifflictions except poison because I just asume it won't work but you are right about Gizmuke he is a tough boss for that early in the game but if you cant cast all that stuff on him he doesn't seem that tough. I always thought I was the innovator using tents on myself and then using rememdies when need but you casting tent on an enemy. Also the boss you get to kill with a Phoneix Down he was tough too its intresting how you can get around the two toughest bosses with casting healing stuff on them.