Is it only once per battle or can I switch back to it to reapply the buffs? --- *Official Junk Tech and Pilot of the Final Gundam* APPROVED (if for no other reason than the horrid acronyms) ~ Lowe Gear
It only applies at the start of the battle. You need to have the Persona with the skills equipped, and when they run out you need to cast a regular ma-kaja. --- Saying that Guitar Hero/Rock Band is for noobs who can't play real instruments is like saying Minesweeper is for noobs who can't go to a real minefield.
In the options you can turn "persona memory" off and that will let you set a persona to always be the one equipped the first turn in battle thus getting the autos up without a hassle. (New to the series.)