Tumble

You become surrounded by a mystical mist as you tumble through the battlefield. You can move up to 10 feet in the direction of your choice, without triggering attacks of opportunity. This movement doesn't count toward the distance you can normally move thanks to your walking speed.

If you are prone when you cast that spell, you can get up on your feet as part of that movement.

In addition, during that movement, and until the end of your turn, you can move through the space of other creatures (but you can't end your turn there).