Auto-battle
You can let the AI assume control over your characters by tapping the Auto icon in the top-left corner. While in auto-battle, you can perform the two following actions:
1. Tap a Saint’s avatar to change whether it attacks with basic attacks or with any skill attack.
2. You can let your Saints choose their targets by themselves, or you can tap a target and have your Saints focus their attacks on it. If you do not choose another target after it has died, they will once again begin choosing their own targets.
You can also set up a default buff/protect target who your Saints will then target with their buffs and protection skills.