Gold, ISO-8, and Catalysts
Gold, ISO-8 and Catalysts actually work together to improve your Champion's abilities. You need a certain quantity of ISO-8 to gain one level each time, and then you need Gold to actually infuse it into your character. After hitting max level, you can use Catalysts to increase your character’s rank unless that’s maxed out too. One and two-star Champions only unlock their later special moves when you increase their rank.

Embark on an inspiring mission of human connection beyond the UCA. Sam — with companions by his side — sets out on a new journey to save humanity from extinction. Join them as they traverse a world beset by otherworldly enemies, obstacles and a haunting question: should we have connected?