In the "Spell Effects" tab, you can change the spell effects. Set the list of sets. A spell effect set is a combination of multiple spell effects. The spell effect set set here includes spells, item use effects, item SP, traps, and events in dungeons. Please note that after updating each spell effect (bottom), you must also update the spell effect set.
Explanation of specific spell effects It's a pain to search for it, so I made it so you can jump directly to it.