Check an enemy’s attacks for a hint at weaknesses

Because attacking weaknesses is such a core part of Persona 3’s fights, having your navigator (Mitsuru at first, Fuuka later) scan an enemy to reveal their weaknesses is one way to get an edge in battle. However, you can’t do a scan until the entire party has gone through a turn, so you can’t know definitively what a shadow’s weakness is until you’ve already had several chances to attack it. This makes fights a trial-and-error game for a few turns, but you can at least use context clues to guess a weakness and start setting up an All-Out Attack.

If you’re analyzing an enemy and can see what spells they have, you can reasonably discern what their weaknesses might be. It’s not foolproof, but Persona does tend to adhere to an elemental balance that can at least give you a good starting point to blindly fire spells at enemies in hopes of hitting a weakness. Fire weakens and is weak to Ice, Electric is weak to and weakens Wind, and Light is weak to and is strong against Dark. So if an enemy is using one element, try the one that typically weakens that.