Dragon Quest VI: Realms of Revelation/All About Vocations

Vocations
Vocations will be given to you by the man standing at the altar on the 1st floor, and they are where most of a character's strength will come from. Changing into one provides stat bonuses and stat penalties according to which once you change into. For example, the Warrior Vocation gives a 10% boost to HP and Str, but also gives a 60% penalty to MP, a 35% penalty to Agility, and a 30% penalty to Wisdom.