If you really want to try again for your faves, then you can checkthis pageby the dedicated fans over on the Grand Summoners wiki for a detailed process of how to go about it. They cover how to reroll both on phones and through emulators, and update the GDoc frequently with the best ...
You'll also want to use ourreroll guide to Metriaas well, but for a brief overview, you should know that each character has an element that they're in affinity with. This boosts their damage against enemies weak to that type and means that they will also take greater damage in certain ...