is DEX useless now?

Here is an idea. Stop viewing Cygnuses as regular characters. They are a sidequest, with a good reward for the real game, but still only something the most casual of players could call main. So what if it collects dust? Most of my mules are only there to hold mesos and items anyway. Devil is right about the bosses, however a 120 Cygnus will get asskicked by normal characters because it is not hard to get higher than 120. Leveling a Cygnus to use as a boss character is just plain nonsense. It is not even viable to earn money through the bosses that low since their drops are just about worthless now.