there are items you can buy for 10k company seals that allow you to change the stats on a class, these mostly get used on warriors (to swap str and vit) and arcanist to swap mind with intelligence, they are somewhat costly so most people avoid using them all the time, but it does mean your not locked into having the stats set in stone.
another popular option is to half half your stats, and go with 15 mind and 15 int.