Goku Syndrome

Based on the Dragonball Z character of the same name, the Goku syndrome is where no other member of the party is necessary and seem to exist only to fail so that the 'Goku' character can look even better. This is fun for only one member of the party and should be avoided at all costs. It can occur mid game, but then as long as the GM is careful with experience and plunder, the players will generally correct the matter through the game itself.