Hey fellow Final Fantasy X explorer! When it comes to sphere grid progression, focus on unlocking key abilities first before branching out to other nodes. Prioritize upgrading your characters’ stats and unlocking new abilities to make them more versatile in battles.

For side quests, don’t forget to complete the Monster Arena challenges and the Celestial Weapons quests for some great rewards. Also, make sure to visit the Remiem Temple and participate in chocobo racing for some fun and rewards.

As for character builds, tailor each character’s sphere grid path to their strengths. For example, focus on magic and magic defense for Yuna, strength and defense for Auron, and agility and evasion for Tidus. Experiment with different paths to find the best builds for your playstyle.

Happy exploring in Spira!