This is accessible by going to the Paimon menu > Mail.
Every 10 pulls from the Wish system is guaranteed one item of four stars or greater. Every nine 10-pull draws (or 90 pulls) are guaranteed one five-star item. Every 180 pulls on the character event card is guaranteed the promoted character.
Acquaint Fate can be used on the permanent Wish cards. Intertwined Fate can be used on event-limited Wish cards.
There is no guarantee that you will get the item (or character) that you want. Expect to obtain mostly three star weapons from the Wish system.
You can also obtain Primogems by completing commissions throughout the world, opening chests, finishing events, defeating bosses, and clearing domains (including the Spiral Abyss) throughout the world.
You can configure up to four parties. To add another party, simply tap the arrow until you see a blank screen with four +’s where each character would be. You can also edit your current party, though this can be unnecessarily slow and complicated if done frequently.
You can always switch parties later on.
