Hey fellow Final Fantasy X explorer! When it comes to sphere grid progression, my advice is to focus on each character’s strengths. For example, Tidus is great for physical attacks, so prioritize upgrading his strength nodes. Wakka excels in long-range attacks, so boost his accuracy and agility. Don’t be afraid to mix and match different paths to create unique character builds!

As for side quests, don’t miss out on the Celestial Weapons, especially Lulu’s Onion Knight and Wakka’s World Champion. They pack a serious punch! And don’t forget to tackle the Monster Arena for some epic battles and rare loot.

When it comes to character builds, experiment with different combinations to find what works best for your playstyle. Whether you prefer heavy hitters or tactical magic users, there’s a build out there for everyone. And don’t forget to customize your aeons for added versatility in battles!

Happy exploring, and may Yevon guide your path!