*Prerequisite: You pick a spell you can cast as a part of this Activity.* You spend the next 10 minutes casting a spell that has a casting time of 10 minutes, or a ritual spell that has a casting time of 11 minutes or less. **Longer Casting Times.** You can do this Activity multiple turns in a row to cast spells with a longer duration. **Rolling Initiative.** If you roll intiative while engaged in this Activity, you can continue to cast the spell in combat by taking the Magic action on each of your turns to maintain Concentration on the spell being cast.