What is Exchange Materials?
This is a function to exchange materials to enhance heroes or equipment into a higher or lower grades or different types.
Through the [Higher Exchange] button, you can exchange lower grade materials into higher grade ones.
Through the [Lower Exchange] button, you can exchange higher grade materials into lower grade ones.
Through the [Equivalent Exchange] button, you can exchange into a different attribute of materials.
How about to use the [Higher Exchange] button and exchange materials into higher grade if you have a hard time to get high-grade materials?
