Hey fellow Final Fantasy X explorers! When it comes to sphere grid progression, remember to focus on each character’s strengths. For example, Tidus is great for speed and agility, so prioritize those nodes for him. For side quests, don’t miss out on the Monster Arena challenges and the Celestial Weapons quests for some powerful gear. As for character builds, experiment with mixing and matching different abilities to create versatile party members. And don’t forget to customize your sphere grid to tailor your characters to your playstyle. Happy exploring!