Hey fellow FFX explorer! When it comes to sphere grid progression, I recommend focusing on each character’s strengths. Keep an eye on the path you take to ensure you maximize their potential. Don’t be afraid to backtrack to grab important nodes.

For side quests, make sure to complete the Monster Arena challenges for great rewards and tough battles. The Celestial Weapons quest is also worth it for powerful gear. And don’t forget about the elusive Aeons hidden throughout Spira!

In terms of character builds, experiment with different paths on the sphere grid to create unique builds. Mix and match abilities to suit your playstyle. And remember, customization is key in maximizing your party’s potential. Happy exploring!