Accessories provide useful and unique effects that greatly improve the quality of your adventure. Oftentimes they overwrite the rules, allowing players the freedom to disable or limit certain interactions.
In the beginning of the game you'll only have one Accessory Slot available of the three. So if you're curious how to unlock the others, look no further.
The Temple of Trials is a unique challenge that pits you against multiple timed stages of combat. Each round contains a different assortment of enemies, along with an entirely new environment.
After completing a round, you'll receive a small number of Magicite Fragments based on the time. However, what we're all waiting for is the grand prize for defeating the final stage.
I think you see where this is going. ;)
Temple of Trials Location
Novice's Trial
Upon reaching the Temple for the first time, the only challenge available will be the Novice's Trial. Five battles await you throughout this event, with the fifth one being a familiar boss encounter...
If you manage to complete the Trial you'll be awarded with the Warrior's Mark, a key item that increases your available Accessory Slots by one.
The Third Accessory Slot
As for the third and final Accessory Slot, that will come later on after you've progressed through more of the story. That said, you'll be returning to the Temple of Trials once again for an even greater challenge.