Optimizing equipment and understanding stat allocation is key to creating powerful builds. For Jonathan, prioritize weapons with high Attack power and armor that boosts STR and CON. Accessories that increase critical hit rate or provide elemental resistance are also valuable. For Charlotte, focus on staves with high Magic Attack, robes that boost INT and MND, and accessories that enhance MP regeneration or spell damage. While leveling, stat increases are automatic, but equipment allows for significant customization. Don't neglect Luck (LCK) for both characters, as it affects item drop rates, which can be crucial for farming rare gear. Always compare new equipment to your current setup to ensure you're making an upgrade.
