Hey fellow Final Fantasy X explorer! When it comes to sphere grid progression, don’t be afraid to mix things up and experiment with different paths for your characters. It can be beneficial to focus on each character’s strengths, but also consider branching out to learn new abilities to create a well-rounded party.

For side quests, make sure to complete the Monster Arena challenges for some great rewards and tough battles. Don’t forget about the Celestial Weapons and Aeons quests for some powerful gear and ultimate summons. And if you’re up for a challenge, try tackling the Dark Aeons for some intense battles.

When it comes to character builds, think about each character’s role in your party. For example, Tidus can excel as a physical attacker, Yuna as a white mage, and Lulu as a black mage. Customize their sphere grids accordingly to maximize their potential in battles.

Happy exploring and may the power of the spheres guide you on your journey through Spira!