As you progress, you will receive magic spells that can help solve levels. You can eliminate pieces by tapping on them, either in a small collection of clusters or through color patterns across the entire level. Use them when you are running out of moves or need help with your current layout. Each power-up costs a portion your magic. Magic can be restored by completing levels and making matches. Each time you complete a level you receive +1 magic for a one-star rank, +3 magic for a two-star rank, or +6 magic for a three-star rank. Some of the best power-ups are:

Raven
Select any tile to break it up.

Yellow Magic
Gives five extra moves.

Wing Wind
Powerful wind that breaks random tiles. Use it on levels that feature a lot of chained gems.

Free Fall mode starts at the end of a level after you have completed the challenge and have at least a one-star rank. Save some power-ups for Free Fall mode because points are multiplied and all of your power-ups are automatically used.