Upon activation, the machine spews forth an arc of flame which culminates in a large sphere of flame at the target, unoccupied location. The sphere has a five foot diameter.   Any creature which ends its turn within 5 feet of the sphere must make a DEX saving throw, which, on a failed attempt, the creature takes 2d6 fire damage. On a successful attempt, they take half as much damage.   As a bonus action on your turn and successive turns for the duration of the effect, you may move the sphere up to 30 feet in any direction. It may be directed over barriers up to 5 feet tall and may jump across chasms of up to 10 feet. The sphere ignites flammable objects not being worn or carried as it moves, and sheds a bright light in a 20 foot radius, and a dim light in an additional 20 feet radius.   If you ram the sphere into a creature when moving it, that creature must immediately make a saving throw against the sphere's damage, and the sphere must end its movement for that turn.