Hey there! When it comes to character builds in Final Fantasy X, it’s all about customizing your party members to suit your playstyle.

For Tidus, focus on increasing his agility and strength to make him a formidable physical attacker. Consider unlocking his Quick Hit ability for fast and powerful strikes in battles.

Yuna is best suited for magical roles. Develop her magic stats to enhance her healing and summoning abilities. Aim to unlock her powerful aeons and increase her MP pool for sustained spellcasting.

Auron excels as a tank and physical powerhouse. Prioritize his strength and defense stats, and unlock abilities like Armor Break and Power Break to debuff enemies while dealing massive damage.

Remember to mix and match the abilities and attributes on the sphere grid to create a well-balanced team that can handle any challenge the game throws your way. Happy gaming!