Flash Recall

 You've developed the ability to instantly recall an unprepared spell in moments of sudden necessity.

Your Wisdom, Intelligence or Charisma increases by 1.

As a bonus action, you prepare a spell of 1st level or higher from your spellbook (if you're a wizard) or from your class spell list (if you're not a wizard). This spell must be of a level for which you have spell slots and it replaces another spell of an equal of higher level that you had previously prepared.

Once you use this feat to recall a spell, you cant do so again until you complete a short or long rest.