Hey fellow Final Fantasy X explorer! When it comes to sphere grid progression, I recommend focusing on each character’s strengths. For example, Tidus is great for agility and speed, so prioritize those nodes for him. Don’t be afraid to mix and match different paths to create unique character builds.

For side quests, make sure to visit the Monster Arena for some challenging battles and unique rewards. Don’t forget to hunt down all the celestial weapons and aeons for some powerful advantages in the late game. And of course, the infamous lightning dodging in the Thunder Plains is a must for those looking to test their reflexes.

As for character builds, experiment with different abilities and spells to find what suits your playstyle best. Whether you prefer a powerhouse like Auron, a versatile spellcaster like Lulu, or a support character like Yuna, there are plenty of options to customize your party.

Happy exploring in Spira!