Strongest Job Lorewise?

[Felis]

This, ironically and paradoxically, translates to players as:
"The only way you can play MCH is by first leveling another class to 50, and saving the world by beating the Garleans, several primals, and an Allagan weapon that was tampered with by creatures that want to destroy the planet. But anyone can totally do it, you're just lowering yourself here."

MCH story is dumb.

the marked one is for the access to ishgard. But machinist can learn everybody in Ishhgard who is too weak for the other classes/jobs.