Characters each have their own progression of levels, gear, and abilities. Equipment and abilities can be customized and upgraded in-between missions. Gold buys you shiny new gear, whilst abilities are acquired as you level up. Upgrades may feel minor at first, but they make a big difference. There's a satisfying power curve throughout the story, making you genuinely feel stronger and more capable the more you play.
Gems are the most important part of your customization, however. Gems earned during missions allow you to enhance abilities and equipment. They're a finite resource, and each one is a valuable prize, so where you choose to slot them is critical. They're also shared across your party, so you'll want to be sure to spread them out evenly.
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