Soul Crystal (Final Fantasy XIV)

A Soul Crystal is a piece of equipment in Final Fantasy XIV. When equipped, it changes the character into the job related to the Soul Crystal.

Changing into a job increases stats and allows new abilities to be used. However, it limits the cross-class abilities to be used by only two other jobs (depending on the Soul Crystal equipped) and limits the amount of abilities that can be chosen. Thus, it sacrifices versatility for specialization.