Elemental Swap

When you cast this spell, you look at any element you want (earth, air, fire, water) and you can swap it out for another element. If you are being buried by a ton of rocks, you can swap it out for a strong gust of wind. If you are walking across the elemental plane of fire, you can turn part of it into water. Whatever you chose to do with this spell can be done instantly, and at times it can even save your life.