Final Fantasy Tactics support abilities

Support Abilities (サポートアビリティ) in Final Fantasy Tactics are learned via Job Points. Each character can only equip one support ability. Support abilities usually only let a character equip things that their current job will not allow, though they do provide abilities that can protect them in certain circumstances, as well as provide some stat boosts.

Dummied Content
CT 0 is a dummied out ability that still has a JP cost assigned to it. Its effect while equipped removes the charge time from every abilities. No units of any kind makes use of the ability in the game, and it appears more to be a debug tool than an ability intended to be in the game.