Hey fellow Final Fantasy X explorer! When it comes to sphere grid progression, it’s important to focus on each character’s strengths. Don’t be afraid to mix and match different paths to create unique character builds. For side quests, definitely don’t miss out on the Celestial Weapons – they’re super powerful! Make sure to also complete the Monster Arena challenges for some great rewards. And for character builds, consider customizing your sphere grid to fit your playstyle. Whether you prefer physical attacks or magic, there are plenty of options to create a powerful team. Happy exploring!