In Final Fantasy XIII and its sequel, every second time you switch paradigms, all your characters have their ATB bars instantly filled. This functionality is not mentioned in the manual for the game or in the in-game datalogs related to the combat system.
Is it a bug, or is the combat system supposed to work that way?
Best Answer
Filling the ATB bar is the expected action during Paradigm Switch - it's the ATB bar reset that's deliberately added. This is to keep you from liberally switching between paradigms too often. Constant switching without a penalty would essentially allow you to access all characters' moves at all times.