Get Mog a Snow Muffler and he'll be a tank. It really depends on how you use 'em. I don't use Dance all of the time, and I really only use Setzer's Slots until I pick up the Fixed Dice. Just make sure Relm ups her magic power every time she's close to leveling up, and she'll be a lot more useful earlier in the game. Strago. . . well, just don't use Strago until you get Grand Train. You can make Gogo do whatever you want as soon as you get him, just go to the Status screen and insert some stuff for him to do.