The trader allows you to purchase resources with many different currencies that can be find in your adventures. There are different sections in the shop once you unlocked the respective feature. All sections have different refresh rates when their inventory will refill. Make sure to visit the shop frequently.

Regular Shop

You can trade gold and crystals agianst basic resources here. The regular shop refreshes daily.

Dungeon Shop

You can trade artifacts here which you can find while completing dungeons. This shop refreshes weekly and offers valuable rewards.

Magic Toilet

The gacha toilet will also give you new currencies which you can trade here for more resources.